Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
Check out the relaunch of our general collection, with classic designs and new ones by our very own Pissog!
Welcome to Smogon! Take a moment to read the Introduction to Smogon for a run-down on everything Smogon, and make sure you take some time to read the global rules.
This set is really fun to mess around with and it does a number on stall teams. Sharpen bolsters Diancie's Diamond Storms and allows it to break through stuff like ChanSkarm with ease. The given EVs 2HKO PhysDef Skarm with a +1 Diamond Storm 100% of the time, maxes speed and has the rest chucked into SpA.
Some of the most common switch ins to Diancie are Mega Venusaur and Amoonguss, as they resist Moonblast and don't fear a lot of other moves Diancie and cover. Psychic, although rare, is able to 2HKO them on the switch after any prior damage (Make sure to hit them on the switch however, as both are able to do a lot of damage back to Diancie). I'll admit, Psychic isn't the best option, but it's very nice on teams that struggle against the two.
224 SpA Mega Diancie Psychic vs. 252 HP / 120+ SpD Amoonguss: 214-254 (49.5 - 58.7%) -- 69.5% chance to 2HKO after Black Sludge recovery
224 SpA Mega Diancie Psychic vs. 232 HP / 4 SpD Mega Venusaur: 192-228 (53.4 - 63.5%) -- guaranteed 2HKO
Now that all the standard sets from "Other Options" have been taken, here's the first actual TNBT set. Sub-Endeavor Mega Diancie works as an amazing lure for popular checks to it, such as Mega Venusaur, or Clefable. Best used on teams that appreciate the removal of Mega Venusaur. Substitute helps bring your HP down, but also has other uses, such as easing prediction. Get a kill, weaken a second check to 1 HP, really effective tbh.
Diancie @ Leftovers
Ability: Clear Body
EVs: 252 HP / 16 Def / 240 SpD
IVs: 0 Atk
Calm Nature
- Moonblast
- Reflect/Light Screen
- Heal Bell
- Stealth Rock
General idea: do you like role compression in terms of a cleric, a screener and a Stealth Rocker all in one slot? You can have this thing with Rock / Fairy typing and Clear Body (almost useless in this set bar random things) as ability. You can choose between Reflect and Light Screen depending on what your team needs. Moonblast is a good Fairy STAB with a nice secondary effect and is picked over Diamond Storm to avoid the detrimental effect of burns and to minimize the impact of Foul Plays. If you want a bulky supporter for your team, regular Diancie can serve you well even because it can bluff being a Mega on the preview. In this way you are able to play with i.e. Mega Latias on your team which can be a good teammate for this Diancie and viceversa.
EVs spread: max HP to have good mixed bulk and 240 EVs in SpD + Calm nature to avoid the OHKO from Keldeo's LO Hydro Pump.
Created this set six months ago and it should still be as effective as it was then. Going to get some more recent replays of higher ranked matches and possibly update the set (if I can climb up the new suspect ladder in time -_-). SR Tank Mega Diancie
Diancie-Mega @ Diancite
Ability: Clear Body
EVs: 160 HP / 252 SpA / 96 Spe
Modest Nature
IVs: 0 Atk / 30 SpA / 30 Spe
- Stealth Rock
- Moonblast
- Hidden Power [Fire] / Protect / Ancient Power
- Earth Power
While Mega Diancie really loves reaching that important 110 base speed tier, its access to Stealth Rock along with its helpful typing and ability make it worth investing into some bulk. The set takes advantage of some common leads, beating Azelf and Mega Sableye with ease, and having an advantage against Clefable, Klefki, TankChomp (with Protect) and Mega Lopunny as well.
The HP investment patches up that horrible HP that makes it somewhat frail otherwise, but some investment in speed is really helpful to outspeed crucial threats like Heatran and Adamant Excadrill post Mega Evolution and Clefable and Empoleon in base form. 252 EVs in Special Attack + a Modest nature make its Moonblasts hit incredibly hard, OHKOing TankChomp 94% of the time.
Protect is the safest choice in that third moveslot, allowing it to Mega Evolve safely giving it a much better matchup against Garchomp and any other leads that are faster than regular Diancie and threaten it with attacks that could kill. It also scouts for Fake Out, Stealth Rock, and other moves. Hidden Power Fire is just good for not getting cockblocked by Skarmory, Ferrothorn and Scizor. Diamond Storm, Psyshock, and Ancient Power are all great options.
There are other EV spreads for this set, though all of them have the same idea. 224 HP / 188 SpA / 96 Spe is a good alternative guaranteed to live an EQ against TankChomp in Mega form. For my 1st three replays, I was using 216 HP / 252 SpA / 40 Spe w/ HP fire in order to outspeed Jolly Bisharp, Breloom, Mega Tyranitar, Tyrnatrum and bulky Zard X in Mega form.
Diancie-Mega @ Diancite
Ability: Magic Bounce
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
- Moonblast
- Earth Power
- Psychic / HP Fire
- Gravity
This is a pretty cool cleaner Diancie set I've been using. Gravity means things like Skarmory, Rotom or any balloon using steels will come in and get bopped or be unable to revenge kill.
This set partners amazingly with Lando-T, who both takes many of the physical hits directed at Diancie, and also is able to mindlessly click EQ thanks to gravity. It helps to have something to deal with things like Serperior or the rare M-Sceptile.
You have to pick whether gravity or moonblast is what you click depending on the other team's makeup. Revealing gravity too early can be bad. Psychic vs HP fire is choosing whether you want to deal with M-Venu or Scizor/Ferro on the switch.
Obviously, lacking protect, this can have some issues mega evolving. It needs opportunities similar to Diancies more common RP set, only this isn't forced out by the Skarm in the back.
252+ SpA Mega Diancie Earth Power vs.
Defensive rotom: 248 HP / 0 SpD Rotom-W: 238-282 (78.5 - 93%) -- 37.5% chance to OHKO after Stealth Rock Offensive rotom: 0 HP / 0 SpD Rotom-W: 238-282 (98.7 - 117%) -- guaranteed OHKO after Stealth Rock
Defensive Skarmory: 252 HP / 4 SpD Skarmory: 336-396 (100.5 - 118.5%) -- guaranteed OHKO SpeDef Skarmory: 252 HP / 252+ SpD Skarmory: 226-268 (67.6 - 80.2%) -- guaranteed 2HKO after Stealth Rock and Leftovers recovery
Balloon Heatran or non-AV excadrill obviously get kapowed if trying to revenge.
Psychic vs Hp Fire is for predicting a M-venu or Scizor/Ferro switch-in.
Diancie-Mega @ Diancite
Ability: Magic Bounce
EVs: 252 SpA / 4 SpD / 252 Spe Timid Nature
- Moonblast
- Earth Power
- Psychic / HP Fire
- Gravity
[...] 252+ SpA Mega Diancie Earth Power vs. Defensive rotom: 248 HP / 0 SpD Rotom-W: 238-282 (78.5 - 93%) -- 37.5% chance to OHKO after Stealth Rock Offensive rotom: 0 HP / 0 SpD Rotom-W: 238-282 (98.7 - 117%) -- guaranteed OHKO after Stealth Rock
Defensive Skarmory: 252 HP / 4 SpD Skarmory: 336-396 (100.5 - 118.5%) -- guaranteed OHKO SpeDef Skarmory: 252 HP / 252+ SpD Skarmory: 226-268 (67.6 - 80.2%) -- guaranteed 2HKO after Stealth Rock and Leftovers recovery
Small thing: you choose a Timid nature (-Atk; +Spe) but your calcs are thought with a Modest nature (-Atk; +SpA).
This means that the damage output of Earth Power under Gravity is lower by a significant margin.
Diancie @ Leftovers
Ability: Clear Body
EVs: 252 HP / 72 Def / 184 SpD
Sassy Nature
- Diamond Storm
- Moonblast
- Earth Power
- Protect/Stealth Rock/Heal Bell/Screens
Overview: This Diance set uses Diance's beefy defenses and good defensive niche to reliably beat things like LO Gengar, all Talonflame variants, Mega Manectric, non-Flash Cannon Heatran, almost all Hoopa Unbound, Conkeldurr (AV and Sheer Force), Thundurus (LO+Mixed+Nasty Plot), LO Tornadus, non-Mega Lati twins, non-EQ Mega Pinsir, Mega Gardevoir, Mega Alakazam, NP Togekiss, Band/Special Victini, and more. A lack of recovery and weaknesses to common offensive types like Grass, Water, and Ground mean that this set has some pretty big weaknesses, but Diance's niche is still quite big and merits consideration on many teams.
Moveset: Diamond Storm and Moonblast for obligatory hard-hitting STAB that lets you beat things weak to your STAB. Be careful with your Diamond Storm PP.
Earth Power is very nice since it lets you hit Steel types like Metagross, Magnezone/Magneton, and Excadrill on the switch. It also lets you stop Skarmory or Talonflame (or other Flying pokemon with Roost) from freely Roosting on you, since you're so slow that you'll almost always go second. Hidden Power Fire is not recommended since uninvested it does absolutely pathetic damage even to 4 times weak mons (you can't 2HKO Bulky Mega Scizor with it).
Protect is really nice, as it lets you scout out an opponent's moves, letting you see if they have the right coverage to hit you, racking up burn or toxic damage, and letting you regain valuable Leftovers recovery. This is very useful as it can for example let you determine whether or not Kyurem-B is carrying the coverage needed to beat you (if it's not running Life Orb+Earth Power/Iron Head, it can't beat you consistently in a 1v1), or give you the necessary Leftovers recovery needed to let you beat Mega Lopunny, or even stop that HJK from connecting.
Other options include Stealth Rock if your team has no other setters, Screens if you're running HO (and Diance is generally fat enough to get off at least one screen), or Heal Bell (valuable with Shedinja), but generally Protect is the best option in this slot.
Items: Leftovers is the best option here, since it's your only form of recovery.
EVs: Diance has an awful base HP of 50, but monstrous base defenses at 150 base Def and SpDef, making it far bulkier than Mega Sableye in comparison (although having a different typing and no Magic Bounce, as Clear Body is fairly useless here). This mixed EV spread lets Diance check/counter many common threats such as LO Gengar, all Talonflame variants, Mega Manectric, non-Flash Cannon Heatran, almost all Hoopa Unbound, Conkeldurr (AV and Sheer Force), Thundurus (LO+Mixed+Nasty Plot), LO Tornadus, non-Mega Lati twins, non-EQ Mega Pinsir, Mega Gardevoir, Mega Alakazam, NP Togekiss, Band/Special Victini, and more.
Below are important calcs to show what this Diance set beats/checks, and how.
252 SpA Life Orb Gengar Sludge Wave vs. 252 HP / 184+ SpD Diancie: 114-136 (37.5 - 44.7%) -- guaranteed 3HKO after Leftovers recovery
252 SpA Life Orb Gengar Sludge Wave vs. 252 HP / 184+ SpD Diancie: 114-136 (37.5 - 44.7%) -- guaranteed 3HKO after Stealth Rock and Leftovers recovery
252 SpA Life Orb Gengar Shadow Ball vs. 252 HP / 184+ SpD Diancie: 97-114 (31.9 - 37.5%) -- 0% chance to 3HKO after Leftovers recovery
0 Atk Diancie Diamond Storm vs. 0 HP / 0 Def Gengar: 163-193 (62.9 - 74.5%) -- guaranteed 2HKO
You cleanly avoid the 3HKO from Sludge Wave even after Stealth Rock and threaten a 2HKO back.
252 SpA Mega Manectric Thunderbolt vs. 252 HP / 184+ SpD Diancie: 85-102 (27.9 - 33.5%) -- 0.1% chance to 3HKO after Stealth Rock and Leftovers recovery
252 SpA Mega Manectric Volt Switch vs. 252 HP / 184+ SpD Diancie: 67-79 (22 - 25.9%) -- possible 5HKO after Stealth Rock and Leftovers recovery
0 SpA Diancie Earth Power vs. 0 HP / 0 SpD Mega Manectric: 158-186 (56.2 - 66.1%) -- guaranteed 2HKO
You take very little from Mega Manectric and threaten the 2HKO back with Earth Power.
252 SpA Choice Specs Raikou Thunderbolt vs. 252 HP / 184+ SpD Diancie: 114-135 (37.5 - 44.4%) -- guaranteed 3HKO after Stealth Rock and Leftovers recovery
252 SpA Choice Specs Raikou Shadow Ball vs. 252 HP / 184+ SpD Diancie: 68-80 (22.3 - 26.3%) -- possible 5HKO after Stealth Rock and Leftovers recovery
0 SpA Diancie Earth Power vs. 0 HP / 4 SpD Assault Vest Raikou: 88-104 (27.4 - 32.3%) -- guaranteed 4HKO
0 SpA Diancie Earth Power vs. 0 HP / 0 SpD Raikou: 130-154 (40.4 - 47.9%) -- guaranteed 3HKO after Leftovers recovery
0 Atk Diancie Diamond Storm vs. 0 HP / 4 Def Raikou: 136-162 (42.3 - 50.4%) -- 1.2% chance to 2HKO
Raikou fares better but if it's locked into the wrong move or doesn't have the right coverage, you win. Note that Earth Power does less than Diamond Storm, so don't be suckered into using Earth Power, especially versus CM Raikou!
252 SpA Heatran Magma Storm vs. 252 HP / 184+ SpD Diancie: 46-54 (15.1 - 17.7%) -- possible 8HKO after Stealth Rock and Leftovers recovery
252 SpA Heatran Earth Power vs. 252 HP / 184+ SpD Diancie: 112-132 (36.8 - 43.4%) -- guaranteed 3HKO after Stealth Rock and Leftovers recovery
0 SpA Diancie Earth Power vs. 0 HP / 4 SpD Heatran: 248-292 (76.7 - 90.4%) -- guaranteed 2HKO after Leftovers recovery
0 SpA Diancie Earth Power vs. 248 HP / 192+ SpD Heatran: 188-224 (48.8 - 58.1%) -- 50.8% chance to 2HKO after Leftovers recovery
Offensive Flash Cannon OHKO's you, but that's becoming less and less common in favor of Magma Storm for trapping and Earth Power to hit other Heatran. Either way, scout for the Flash Cannon with Protect, and act appropriately. If there's no Flash Cannon, you win the 1v1.
180 SpA Life Orb Tornadus-T Focus Blast vs. 252 HP / 184+ SpD Diancie: 81-96 (26.6 - 31.5%) -- guaranteed 4HKO after Stealth Rock and Leftovers recovery
180 SpA Life Orb Tornadus-T Hurricane vs. 252 HP / 184+ SpD Diancie: 55-66 (18 - 21.7%) -- possible 6HKO after Stealth Rock and Leftovers recovery
76 Atk Life Orb Tornadus-T Superpower vs. 252 HP / 72 Def Diancie: 81-96 (26.6 - 31.5%) -- guaranteed 4HKO after Stealth Rock and Leftovers recovery
0 Atk Diancie Diamond Storm vs. 96 HP / 0- Def Tornadus-T: 288-342 (89.1 - 105.8%) -- 37.5% chance to OHKO
0 Atk Diancie Diamond Storm vs. 0 HP / 0 Def Tornadus-T: 260-308 (86.9 - 103%) -- 18.8% chance to OHKO
You threaten the OHKO back after LO recoil or after a tiny bit of chip damage, while taking very little from Focus Blast or Hurricane. Even Superpower doesn't do much, while you threaten back the OHKO with Diamond Storm at that point.
252 SpA Thundurus Thunderbolt vs. 252 HP / 184+ SpD Diancie: 81-96 (26.6 - 31.5%) -- guaranteed 4HKO after Stealth Rock and Leftovers recovery
252 SpA Life Orb Thundurus Thunderbolt vs. 252 HP / 184+ SpD Diancie: 105-125 (34.5 - 41.1%) -- guaranteed 3HKO after Stealth Rock and Leftovers recovery
76 Atk Life Orb Thundurus Superpower vs. 252 HP / 72 Def Diancie: 91-108 (29.9 - 35.5%) -- 26.3% chance to 3HKO
+2 252 SpA Thundurus Thunderbolt vs. 252 HP / 184+ SpD Diancie: 160-190 (52.6 - 62.5%) -- guaranteed 2HKO after Stealth Rock and Leftovers recovery
0 Atk Diancie Diamond Storm vs. 0 HP / 0 Def Thundurus: 288-342 (96.3 - 114.3%) -- 81.3% chance to OHKO
Even if Thundurus Nasty Plots as you switch in, you threaten the OHKO back. Mixed Thundurus can't really hurt you badly either.
160 Atk Life Orb Hoopa Unbound Gunk Shot vs. 252 HP / 72 Def Diancie: 125-148 (41.1 - 48.6%) -- guaranteed 3HKO
96 SpA Life Orb Hoopa Unbound Psychic vs. 252 HP / 184+ SpD Diancie: 121-144 (39.8 - 47.3%) -- 1.2% chance to 2HKO after Stealth Rock and Leftovers recovery
96 SpA Life Orb Hoopa Unbound Dark Pulse vs. 252 HP / 184+ SpD Diancie: 55-64 (18 - 21%) -- possible 6HKO after Stealth Rock and Leftovers recovery
252 SpA Life Orb Hoopa Unbound Psychic vs. 252 HP / 184+ SpD Diancie: 133-157 (43.7 - 51.6%) -- 66.8% chance to 2HKO after Stealth Rock and Leftovers recovery
252 Atk Choice Band Hoopa Unbound Hyperspace Fury vs. 252 HP / 72 Def Diancie: 96-113 (31.5 - 37.1%) -- 81.2% chance to 3HKO
252 Atk Choice Band Hoopa Unbound Gunk Shot vs. 252 HP / 72 Def Diancie: 153-180 (50.3 - 59.2%) -- guaranteed 2HKO
Note that only Banded Hoopa Gunk Shot can 2HKO, and even that can be stopped with using Protect to get some HP back. Otherwise, Gunk Shot is a clean 3HKO, while even LO Psychic does under 50% most of the time (and you can Protect to ensure you avoid the 2HKO chance after SR). In response...
0 Atk Diancie Diamond Storm vs. 0 HP / 0- Def Hoopa Unbound: 181-214 (60.1 - 71%) -- guaranteed 2HKO
0 SpA Diancie Moonblast vs. 0 HP / 0 SpD Hoopa Unbound: 164-194 (54.4 - 64.4%) -- guaranteed 2HKO
0 Atk Diancie Diamond Storm vs. -1 0 HP / 0- Def Hoopa Unbound: 273-322 (90.6 - 106.9%) -- 43.8% chance to OHKO
After a defense drop from Hyperspace Fury, you can OHKO back with Diamond Storm (especially if LO recoil is there) and you still take off massive amounts of HP with either Moonblast or Diamond Storm.
252 SpA Life Orb Latios Psyshock vs. 252 HP / 72 Def Diancie: 114-136 (37.5 - 44.7%) -- guaranteed 3HKO
0 SpA Diancie Moonblast vs. 72 HP / 0 SpD Latias: 164-194 (51.4 - 60.8%) -- guaranteed 2HKO
You eat up LO Psyshock and 2HKO back. Note that you can't actually do over 50% to the standard Mega Latias set, so watch out for that, but Shedinja can handle those.
252 SpA Mega Charizard Y Fire Blast vs. 252 HP / 184+ SpD Diancie in Sun: 88-104 (28.9 - 34.2%) -- 2.3% chance to 3HKO after Stealth Rock and Leftovers recovery
252 SpA Mega Charizard Y Solar Beam vs. 252 HP / 184+ SpD Diancie: 172-204 (56.5 - 67.1%) -- guaranteed 2HKO after Stealth Rock and Leftovers recovery
Diamond Storm obviously OHKO's back. In essence, if you switch in on Fire Blast, you win the 1v1. If you switch on Solar Beam, you don't (unless they go for Fire Blast thinking it'll kill). Still, you check this monster, which is very nice.
232 SpA Pixilate Mega Gardevoir Hyper Voice vs. 252 HP / 184+ SpD Diancie: 127-151 (41.7 - 49.6%) -- 23.8% chance to 2HKO after Stealth Rock and Leftovers recovery
232 SpA Mega Gardevoir Psyshock vs. 252 HP / 72 Def Diancie: 103-123 (33.8 - 40.4%) -- guaranteed 3HKO
+1 232 SpA Pixilate Mega Gardevoir Hyper Voice vs. 252 HP / 184+ SpD Diancie: 190-225 (62.5 - 74%) -- guaranteed 2HKO after Stealth Rock and Leftovers recovery
0 Atk Diancie Diamond Storm vs. 0 HP / 24 Def Mega Gardevoir: 148-175 (53.4 - 63.1%) -- guaranteed 2HKO
If you want to play it extra safe, go for Protect after you switch in to get that little bit of extra HP and dodge the 2HKO. Watch out for CM variants, but that's why you have Protect and Shedinja.
252+ SpA Togekiss Air Slash vs. 252 HP / 184+ SpD Diancie: 36-42 (11.8 - 13.8%) -- possibly the worst move ever
+2 252+ SpA Togekiss Air Slash vs. 252 HP / 184+ SpD Diancie: 72-84 (23.6 - 27.6%) -- 6% chance to 4HKO after Stealth Rock and Leftovers recovery
+4 252+ SpA Togekiss Air Slash vs. 252 HP / 184+ SpD Diancie: 107-126 (35.1 - 41.4%) -- guaranteed 3HKO after Stealth Rock and Leftovers recovery
+6 252+ SpA Togekiss Air Slash vs. 252 HP / 184+ SpD Diancie: 143-168 (47 - 55.2%) -- guaranteed 2HKO after Stealth Rock and Leftovers recovery
0 Atk Diancie Diamond Storm vs. 248 HP / 0 Def Togekiss: 224-266 (60 - 71.3%) -- guaranteed 2HKO after Leftovers recovery
0 Atk Diancie Diamond Storm vs. 252 HP / 252 Def Togekiss: 176-210 (47 - 56.1%) -- 21.5% chance to 2HKO after Leftovers recovery
Unless Togekiss is max Bulk, it can't take Diamond Storms, but in that case, it's probably gonna run out of PP before it can kill you with Air Slash, since you have a very good shot at avoiding the 2HKO using Protect (with a bit of luck of course) even at +6 from a Modest Max SpA Togekiss. Good stop to one of the most potent stallbreakers that can set up on Shedinja with ease.
252 SpA Mega Alakazam Psychic vs. 252 HP / 184+ SpD Diancie: 103-123 (33.8 - 40.4%) -- guaranteed 3HKO after Stealth Rock and Leftovers recovery
252 SpA Life Orb Alakazam Psyshock vs. 252 HP / 72 Def Diancie: 118-140 (38.8 - 46%) -- guaranteed 3HKO
252 SpA Life Orb Alakazam Psychic vs. 252 HP / 184+ SpD Diancie: 110-133 (36.1 - 43.7%) -- guaranteed 3HKO after Stealth Rock and Leftovers recovery
252 SpA Life Orb Alakazam Energy Ball vs. 252 HP / 184+ SpD Diancie: 148-177 (48.6 - 58.2%) -- guaranteed 2HKO after Stealth Rock and Leftovers recovery
0 Atk Diancie Diamond Storm vs. 0 HP / 4 Def Mega Alakazam: 153-180 (60.9 - 71.7%) -- guaranteed 2HKO
0 SpA Diancie Moonblast vs. 0 HP / 0 SpD Alakazam: 108-127 (43 - 50.5%) -- 2.3% chance to 2HKO
You dodge the 2HKO from almost all the common moves (except maybe Energy Ball, but then you have Protect and Alakazam is missing out on some other coverage), and Diamond Storm wrecks face.
252+ SpA Teravolt Kyurem-B Earth Power vs. 252 HP / 184+ SpD Diancie: 114-136 (37.5 - 44.7%) -- guaranteed 3HKO after Stealth Rock and Leftovers recovery
252+ SpA Teravolt Kyurem-B Ice Beam vs. 252 HP / 184+ SpD Diancie: 85-102 (27.9 - 33.5%) -- 0.1% chance to 3HKO after Stealth Rock and Leftovers recovery
252+ SpA Life Orb Teravolt Kyurem-B Ice Beam vs. 252 HP / 184+ SpD Diancie: 110-133 (36.1 - 43.7%) -- guaranteed 3HKO after Stealth Rock and Leftovers recovery
252+ SpA Life Orb Teravolt Kyurem-B Earth Power vs. 252 HP / 184+ SpD Diancie: 148-177 (48.6 - 58.2%) -- guaranteed 2HKO after Stealth Rock and Leftovers recovery
32 SpA Teravolt Kyurem-B Ice Beam vs. 252 HP / 184+ SpD Diancie: 67-79 (22 - 25.9%) -- possible 5HKO after Stealth Rock and Leftovers recovery
0 SpA Diancie Moonblast vs. 56 HP / 0 SpD Kyurem-B: 224-266 (55.3 - 65.6%) -- guaranteed 2HKO after Leftovers recovery
0 Atk Diancie Diamond Storm vs. 56 HP / 0- Def Kyurem-B: 240-284 (59.2 - 70.1%) -- guaranteed 2HKO after Leftovers recovery
Special Kyurem-Black hits very hard with Life Orb, and Teravolt means would-be checks/counters like Mega Venusaur or Dragonite get destroyed. However, unless Kyurem-B has a Life Orb, max SpA investment, and Earth Power, you avoid the 2HKO and 2HKO back with Diamond Storm or Moonblast. Even if the worst-case scenario is there, you can use Protect to give yourself a better shot (don't switch in Shedinja because Teravolt makes you very sad). SubRoost Kyurem-B (special variants) lose to you in the 1v1 as well.
252+ SpA Victini Focus Blast vs. 252 HP / 184+ SpD Diancie: 68-80 (22.3 - 26.3%) -- possible 5HKO after Stealth Rock and Leftovers recovery
252+ SpA Victini Blue Flare vs. 252 HP / 184+ SpD Diancie: 54-65 (17.7 - 21.3%) -- possible 6HKO after Stealth Rock and Leftovers recovery
0 Atk Diancie Diamond Storm vs. 248 HP / 68 Def Victini: 204-240 (50.6 - 59.5%) -- 80.1% chance to 2HKO after Leftovers recovery
Special Lure Victini is a thing that beats up on TankChomp/Lando and other common counters to Banded Victini. However, Special Victini can't really touch this Diance set, and your Diamond Storm has great odds to 2HKO even bulky Stallbreaker Victini sets.
252 SpA Mega Diancie Earth Power vs. 252 HP / 184+ SpD Diancie: 130-154 (42.7 - 50.6%) -- 42.6% chance to 2HKO after Stealth Rock and Leftovers recovery
0 SpA Diancie Earth Power vs. 0 HP / 0 SpD Mega Diancie: 120-142 (49.7 - 58.9%) -- 99.6% chance to 2HKO
You actually beat normal Mega Diance in a 1v1, which is pretty awesome. Use Protect to ensure the victory if rocks are up on your side as you switch in from full.
252+ Atk Choice Band Talonflame Brave Bird vs. 252 HP / 72 Def Diancie: 78-93 (25.6 - 30.5%) -- guaranteed 4HKO
+2 252 Atk Sharp Beak Talonflame Brave Bird vs. 252 HP / 72 Def Diancie: 114-135 (37.5 - 44.4%) -- guaranteed 3HKO
+6 0 Atk Talonflame Brave Bird vs. 252 HP / 72 Def Diancie: 144-170 (47.3 - 55.9%) -- 80.1% chance to 2HKO
252+ Atk Choice Band Talonflame Steel Wing vs. 252 HP / 72 Def Diancie: 248-292 (81.5 - 96%) -- guaranteed 2HKO
0 Atk Diancie Diamond Storm vs. 248 HP / 0 Def Talonflame: 288-338 (80.2 - 94.1%) -- guaranteed 2HKO after Leftovers recovery
0 SpA Diancie Earth Power vs. 248 HP / 252+ SpD Talonflame: 118-140 (32.8 - 38.9%) -- 6.9% chance to 3HKO after Leftovers recovery
0 Atk Diancie Diamond Storm vs. +3 248 HP / 0 Def Talonflame: 232-276 (64.6 - 76.8%) -- guaranteed 2HKO after Leftovers recovery
As you can see, the only Talonflame that beat you are the ones that run Steel Wing and nail you either on the switch, or boost to +2 as you come in and hit you with Steel Wing (which is sometimes run to beat Mega Diance, so scout with Protect). Even if Talonflame has started setting up, Diamond Storm does tons of damage even through Roost, and you can nail Talonflame with Earth Power on the Roost for good damage too. Basically, feel free to switch Diance in to Talonflame whenever, but use Protect to be safe!
248+ Atk Mega Aerodactyl Stone Edge vs. 252 HP / 72 Def Diancie: 123-145 (40.4 - 47.6%) -- guaranteed 3HKO
248+ Atk Tough Claws Mega Aerodactyl Pursuit vs. 252 HP / 72 Def Diancie: 21-25 (6.9 - 8.2%) -- possibly the worst move ever
0 Atk Diancie Diamond Storm vs. 0 HP / 44 Def Mega Aerodactyl: 236-278 (78.4 - 92.3%) -- guaranteed 2HKO
Aqua Tail is a clean 2HKO, but after SR, your Diamond Storm OHKOs Mega Aerodactyl back. Pursuit is becoming more common on Mega Aerodactyl, but you don't really care about that at all.
252 Atk Tyranitar Stone Edge vs. 252 HP / 72 Def Diancie: 112-133 (36.8 - 43.7%) -- guaranteed 3HKO
252 Atk Tyranitar Crunch vs. 252 HP / 72 Def Diancie: 45-53 (14.8 - 17.4%) -- possible 6HKO
You check this since Stone Edge really hurts and Moonblast is a 3HKO, but still, at least it can check if needed. Definitely something to account for in the rest of teambuilding though.
240+ Atk Pure Power Mega Medicham High Jump Kick vs. 252 HP / 72 Def Diancie: 256-303 (84.2 - 99.6%) -- guaranteed 2HKO
240+ Atk Pure Power Mega Medicham Bullet Punch vs. 252 HP / 72 Def Diancie: 212-252 (69.7 - 82.8%) -- guaranteed 2HKO
0 SpA Diancie Moonblast vs. 16 HP / 0 SpD Mega Medicham: 236-278 (89 - 104.9%) -- 31.3% chance to OHKO
You lose the 1v1 handily, but if your opponent thinks you're Mega Diance and goes for the Bullet Punch, has a bit of chip damage, and you're at full or close to it...you can actually pseudo-revenge kill. Unreliable as hell, but interesting enough that I thought it warrants calcing and posting.
252+ Atk Life Orb Sheer Force Conkeldurr Poison Jab vs. 252 HP / 72 Def Diancie: 114-135 (37.5 - 44.4%) -- guaranteed 3HKO
252+ Atk Life Orb Conkeldurr Drain Punch vs. 252 HP / 72 Def Diancie: 125-148 (41.1 - 48.6%) -- guaranteed 3HKO
252+ Atk Life Orb Conkeldurr Mach Punch vs. 252 HP / 72 Def Diancie: 66-79 (21.7 - 25.9%) -- 4% chance to 4HKO
252+ Atk Conkeldurr Drain Punch vs. 252 HP / 72 Def Diancie: 96-114 (31.5 - 37.5%) -- 0% chance to 3HKO after Leftovers recovery
0 SpA Diancie Moonblast vs. 0 HP / 236 SpD Assault Vest Conkeldurr: 144-170 (41 - 48.4%) -- guaranteed 3HKO
0 SpA Diancie Moonblast vs. 252 HP / 0 SpD Conkeldurr: 290-344 (70 - 83%) -- guaranteed 2HKO
You actually only check LO Sheer Force Conk due to how much Drain Punch and Mach Punch do (although it's possible to outplay with Protect), while you dumpster AV Conkeldurr
252 Atk Mega Pinsir Close Combat vs. 252 HP / 72 Def Diancie: 100-118 (32.8 - 38.8%) -- 99.5% chance to 3HKO
252 Atk Aerilate Mega Pinsir Return vs. 252 HP / 72 Def Diancie: 83-98 (27.3 - 32.2%) -- guaranteed 4HKO
252 Atk Aerilate Mega Pinsir Quick Attack vs. 252 HP / 72 Def Diancie: 33-39 (10.8 - 12.8%) -- possible 8HKO
+2 252 Atk Mega Pinsir Close Combat vs. 252 HP / 72 Def Diancie: 198-234 (65.1 - 76.9%) -- guaranteed 2HKO
+2 252 Atk Aerilate Mega Pinsir Quick Attack vs. 252 HP / 72 Def Diancie: 64-76 (21 - 25%) -- 0% chance to 4HKO
0 Atk Diancie Diamond Storm vs. 0 HP / 4 Def Pinsir: 216-254 (79.7 - 93.7%) -- guaranteed 2HKO
0 SpA Diancie Moonblast vs. 0 HP / 0 SpD Pinsir: 138-163 (50.9 - 60.1%) -- guaranteed 2HKO
Diamond Storm OHKOs Mega Pinsir, and unless Mega Pinsir is running EQ (most run CC nowadays to hit stuff like Tyranitar harder while still hitting Heatran), you win the 1v1 handily, even if you switch in on Swords Dance'd Quick Attack. If Pinsir doesn't mega to try and mindgame you, you still do loads with Diamond Storm and even Moonblast is a clean 2HKO.
252 Atk Adaptability Mega Beedrill Poison Jab vs. 252 HP / 72 Def Diancie: 130-154 (42.7 - 50.6%) -- 2.3% chance to 2HKO
252 Atk Adaptability Mega Beedrill U-turn vs. 252 HP / 72 Def Diancie: 57-68 (18.7 - 22.3%) -- possible 5HKO
The Mega Beedrill that think they can just Poison Jab you and kill you are in for a nasty surprise since you cleanly avoid the 2HKO even without Protect and Diamond Storm obliterates back.
252 Atk Mega Lopunny High Jump Kick vs. 252 HP / 72 Def Diancie: 147-174 (48.3 - 57.2%) -- 91.8% chance to 2HKO
252 Atk Mega Lopunny Return vs. 252 HP / 72 Def Diancie: 57-68 (18.7 - 22.3%) -- possible 5HKO
252 Atk Mega Lopunny Fake Out vs. 252 HP / 72 Def Diancie: 23-27 (7.5 - 8.8%) -- possibly the worst move ever
0 SpA Diancie Moonblast vs. 0 HP / 0 SpD Mega Lopunny: 212-252 (78.2 - 92.9%) -- guaranteed 2HKO
If you don't use Protect, you lose the 1v1, but with Protect you can force out or beat Mega Lopunny handily. Of course, Shedinja handles Mega Lopunny handily, but always good to have a backup.
+2 252 Atk Hawlucha High Jump Kick vs. 252 HP / 72 Def Diancie: 223-264 (73.3 - 86.8%) -- guaranteed 2HKO
+2 252 Atk Hawlucha Acrobatics (110 BP) vs. 252 HP / 72 Def Diancie: 94-111 (30.9 - 36.5%) -- 69.4% chance to 3HKO
252 Atk Hawlucha High Jump Kick vs. 252 HP / 72 Def Diancie: 112-133 (36.8 - 43.7%) -- guaranteed 3HKO
Even behind the sub, Hawlucha can't OHKO you at +2 so as long as Hawlucha isn't at +2 and behind a sub already, you can beat it. Judicious use of Protect can also make Hawlucha's life miserable.
252+ Atk Choice Band Victini V-create vs. 252 HP / 72 Def Diancie: 135-159 (44.4 - 52.3%) -- 16% chance to 2HKO
252+ Atk Choice Band Victini Bolt Strike vs. 252 HP / 72 Def Diancie: 130-153 (42.7 - 50.3%) -- 1.2% chance to 2HKO
0 Atk Diancie Diamond Storm vs. -1 0 HP / 4 Def Victini: 320-380 (93.8 - 111.4%) -- 68.8% chance to OHKO
0 SpA Diancie Earth Power vs. -1 0 HP / 0 SpD Victini: 194-230 (56.8 - 67.4%) -- guaranteed 2HKO
Banded Victini is a monster, and Banded V-create is even more scary. Even without Protect though, you eat that up and avoid the 2HKO most of the time while threatening the OHKO back with Diamond Storm or Earth Power.
252+ Atk Choice Band Entei Bulldoze vs. 252 HP / 72 Def Diancie: 134-158 (44 - 51.9%) -- 13.3% chance to 2HKO
252+ Atk Choice Band Entei Sacred Fire vs. 252 HP / 72 Def Diancie: 82-97 (26.9 - 31.9%) -- guaranteed 4HKO
252+ Atk Choice Band Entei Stone Edge vs. 252 HP / 72 Def Diancie: 110-130 (36.1 - 42.7%) -- guaranteed 3HKO
252+ Atk Choice Band Entei Stone Edge vs. 252 HP / 72 Def Diancie: 110-130 (36.1 - 42.7%) -- guaranteed 3HKO after Leftovers recovery and burn damage
0 SpA Diancie Earth Power vs. 0 HP / 0 SpD Entei: 164-194 (44.2 - 52.2%) -- 17.6% chance to 2HKO
0 Atk burned Diancie Diamond Storm vs. 0 HP / 4 Def Entei: 123-145 (33.1 - 39%) -- 99.9% chance to 3HKO
0 Atk Diancie Diamond Storm vs. 0 HP / 4 Def Entei: 246-290 (66.3 - 78.1%) -- guaranteed 2HKO
Banded Entei is strong and underused, and Sacred Fire burns wreck many common checks/counters like Tyranitar and fat ground types. If Diance gets burned, things get a bit dicey, but Protect and Earth Power mean you still win the 1v1 (even if you switch in). If Entei locks itself into Bulldoze, just go into Shedinja.
Good partners: Sand setters make this set last substantially longer versus Special attackers, and the additional chip damage Sand gives is always nice. However, the main issue is that the two viable OU Sand Stream users are Tyranitar and Hippowdon, which stacks weaknesses with this set heavily. If you REALLY want to use one of these two though, I suggest using Hippowdon simply because it can set up rocks and has the ability to phaze/has reliable recovery.
Bulky grasses like Amoongus, Tangrowth (AV or PhysDef), Mega Venusaur, and Serperior (SubSeed or any of the more standard sets) are amazing partners for this Diance set, as they can eat up the grass and water attacks hurled at Diance, who in turn laughs off every bug, fire or flying type attack in OU.
Oncologist (Diancie) @ Leftovers
Ability: Clear Body
EVs: 252 HP / 252 Def / 4 SpD
Impish Nature
- Moonblast
- Diamond Storm / Hidden Power Fire
- Calm Mind
- Substitute
So everyone has been completely focusing on Mega-Diancie, so I thought, Why not Turn the Tables? It is notably tankier than Mega-Diancie(but slower) and I feel we should put it's bulk to use. That is how I came up with this set.