Project Victim of the Week

[Sanger Zonvolt]

Name: Mega Sceptile (AoA)
Status: Check

Sceptile @ Sceptilite
Ability: Overgrow
EVs: 4 Def / 252 SpA / 252 Spe
Naive Nature / Timid
- Leaf Storm
- Dragon Pulse
- Earthquake / Protect
- Hidden Power Fire / Focus Blast

While less popular than Serperior, Mega Sceptile still has more than enough speed and power to threaten out Manaphy and can come in on anything bar Ice Beam. If it hasn't Mega'd yet, it can even use Manaphy as an opportunity to safely M-Evolve:

252+ SpA Manaphy Surf vs. 0 HP / 4- SpD Mega Sceptile: 42-50 (14.9 - 17.7%) -- possible 6HKO
252+ SpA Manaphy Psychic vs. 0 HP / 4- SpD Mega Sceptile: 114-135 (40.5 - 48%) -- guaranteed 3HKO
252+ SpA Manaphy Hidden Power Fire vs. 0 HP / 4- SpD Mega Sceptile: 76-90 (27 - 32%) -- guaranteed 4HKO

252+ SpA Manaphy Surf vs. 0 HP / 4- SpD Sceptile: 85-101 (30.2 - 35.9%) -- 40.5% chance to 3HKO
252+ SpA Manaphy Hidden Power Fire vs. 0 HP / 4- SpD Sceptile: 152-180 (54 - 64%) -- guaranteed 2HKO
252+ SpA Manaphy Psychic vs. 0 HP / 4- SpD Sceptile: 114-135 (40.5 - 48%) -- guaranteed 3HKO

252 SpA Mega Sceptile Leaf Storm vs. 96 HP / 0 SpD Manaphy: 458-542 (125.4 - 148.4%) -- guaranteed OHKO

 

[Lil YoshiXD]

Check/Sacrificial Counter
Gothitelle @ Choice Scarf
Ability: Shadow Tag
EVs: 80 HP / 176 SpA / 252 Spe
Timid Nature
- Calm Mind
- Trick
- Rest
- Psychic

Basically manaphy is near impossible to counter and can tear through stall teams. The idea here is to come in as manaphy boosts. Trick the scarf onto and basically cripple it the rest of the game. You take heavy damage, but manaphy loses its coverage and ability to boost making it extremely easy to handle:

+3 252 SpA Manaphy Scald vs. 80 HP / 0 SpD Gothitelle: 252-297 (83.7 - 98.6%)
+3 252 SpA Manaphy Surf vs. 80 HP / 0 SpD Gothitelle: 282-333 (93.6 - 110.6%)
+3 252+ SpA Manaphy Scald vs. 80 HP / 0 SpD Gothitelle: 276-325 (91.6 - 107.9%)
+3 252+ SpA Manaphy Surf vs. 80 HP / 0 SpD Gothitelle: 310-366 (102.9 - 121.5%)

176 SpA Gothitelle Psychic vs. 96 HP / 0 SpD Manaphy: 111-132 (30.4 - 36.1%)

you don't do much to you and he does a lot to you, but that is not the point the point is you sack gothitelle or have it take a lot of damage to cripple manaphy.

 

[escarlata]

Counter
Gardevoir @ Gardevoirite
Ability: Trace > Pixilate
EVs: 24 Def / 232 SpA / 252 Spe
Timid Nature
- Hyper Voice
- Psyshock
- Focus Blast
- Encore

Calcs for Reference

232 SpA Pixilate Mega Gardevoir Hyper Voice vs. 96 HP / 0 SpD Manaphy: 226-267 (61.9 - 73.1%) -- guaranteed 2HKO after Leftovers recovery
252 SpA Manaphy Energy Ball vs. 0 HP / 0 SpD Mega Gardevoir: 63-75 (22.7 - 27%) -- 47.3% chance to 4HKO
252 SpA Manaphy Scald vs. 0 HP / 0 SpD Mega Gardevoir: 84-100 (30.3 - 36.1%) -- guaranteed 3HKO after burn damage
252 SpA Manaphy Surf vs. 0 HP / 0 SpD Mega Gardevoir: 94-112 (33.9 - 40.4%) -- guaranteed 3HKO

Gardevoir outspeeds Manaphy and easily gets a 2HKO with Hyper Voice. Using TG on the switch is a no-go because Encore makes makes your life hard. In fact, any unSTABed move should be Encored just so as to make sure Manaphy cannot go into Scald.
The fact that Gardevoir is at best 3HKOed by Manaphy means 100% of the time, it can switch into any move Manaphy makes and always 2HKO, which falls under the classification of a counter since you can always switch in and beat it. The only problem facing Manaphy is that if it gets burned by Manaphy on turn 1, then it will result in both mons fainting on turn 3.

 

[Qwanda]

Hard Check ( /counter?)

Shaymin @ Life Orb
Ability: Natural Cure
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
- Seed Flare
- Dazzling Gleam / Earth Power
- Psychic / Dazzling Gleam
- Synthesis

Pretty simple, really: Shaymin switches into anyone one of manaphy's moves reguardless of any and all hazards, and then proceeds to KO with seed flare.
Idk really know what more you could ask for, although shaymin cant switch in to two ice beams, but that is about it. Basically, shaymin is a very guaranteed switch in. Even if you take one ice beam and then manaphy switches out, all it requires is a little bit of prediction, a well timed VoltTurn, a misplay on the opponents part, or a sack on yours' to make sure shaymin gets in for free the second time.

Ice beam calc if you need proof:
252 SpA Manaphy Ice Beam vs. 0 HP / 4 SpD Shaymin: 164-194 (48 - 56.8%) -- guaranteed 2HKO

 

[GnralLao]

Mega Slowbro as a Hard Check / Counter (if and only if Manaphy doesn't carry Energy Ball)

Slowbro @ Slowbronite
Ability: Regenerator
EVs: 252 HP / 80 Def / 176 SpD
Bold Nature
- Calm Mind
- Scald
- Psyshock
- Slack Off

M-Bro can switch into anything from EB-less Manaphy (Scald burns suck though, but it won't be poisoned at least), set up Calm Minds and win. The worst case scenario (without Energy Ball in it) would be:

Turn #1:
M-Bro switches into Manaphy.
Manaphy uses Tail Glow.

Turn #2:
Manaphy uses Tail Glow (even Modest ones can't 2HKO at +3).
M-Bro uses Calm Mind.

Turn #3:
Manaphy uses Surf (does up to 52.5% (207 HP)).
M-Bro uses Calm Mind.

Turn #4:
Manaphy uses Surf (does up to 39.5% (156 HP), which leaves M-Bro at 8% (31 HP)).
M-Bro uses Slack Off.

After that, M-Bro wins the confrontation against Manaphy (SR can be troublesome, but it still has some decent chances to survive this exact situation with them included) by setting up more Calm Minds (M-Bro OHKOes at +5 or at +4 after SR) or by simply 2HKOing after those two Calm Minds. If Manaphy was Timid instead of Modest, M-Bro would've won this situation even after SR damage.

Calcs

252+ SpA Manaphy Surf vs. 252 HP / 176 SpD Mega Slowbro: 66-78 (16.7 - 19.7%) -- guaranteed 6HKO
+3 252+ SpA Manaphy Surf vs. 252 HP / 176 SpD Mega Slowbro: 165-195 (41.8 - 49.4%) -- guaranteed 3HKO
+6 252+ SpA Manaphy Surf vs. +1 252 HP / 176 SpD Mega Slowbro: 176-207 (44.6 - 52.5%) -- 22.7% chance to 2HKO
+6 252+ SpA Manaphy Surf vs. +2 252 HP / 176 SpD Mega Slowbro: 132-156 (33.5 - 39.5%) -- guaranteed 3HKO

+2 0 SpA Mega Slowbro Psyshock vs. 96 HP / 0 Def Manaphy: 216-255 (59.1 - 69.8%) -- guaranteed 2HKO
+4 0 SpA Mega Slowbro Psyshock vs. 96 HP / 0 Def Manaphy: 322-381 (88.2 - 104.3%) -- guaranteed OHKO after Stealth Rock
+5 0 SpA Mega Slowbro Psyshock vs. 96 HP / 0 Def Manaphy: 376-444 (103 - 121.6%) -- guaranteed OHKO

 

[Level 56]

Thundurus (Check)

Thundurus @ Life Orb
Ability: Prankster
EVs: 4 HP / 252 SpA / 252 Spe
Timid Nature
- Thunder Wave
- Hidden Power Ice
- Thunderbolt
- Focus Blast

Thundurus is a nice check to manaphy and a great revenge killer. Thundurus can switch-in against a predicted energy ball or tail glow easily and can OHKO Manaphy with a single Thunderbolt. Though switching-in against Scald or Ice Beam maybe problematic for Thundurus. Overall, it can easily revenge kill Manaphy and is a decent check to it.

 

[Random Passerby]

Name : Celebi
Status: Check

Celebi @ Life Orb
EVs: 44 HP / 252 SpA / 208 Spe
Modest Nature
- Leaf Storm
- Earth Power / Hidden Power Fire
- Thunder Wave / U-Turn
- Recover

Offensive Celebi outspeeds Manaphy and OHKOes with STAB Leaf Storm. It can also avoid the 2HKO from any move Manaphy carries except Ice Beam. Earth Power is a secondary coverage move to hit Bisharp and Heatran hard while Hidden Power Fire allows Celebi to punch holes in Ferrothorn and Skarmory. Thunder Wave prevents Celebi from being set-up bait while U-Turn is for momentum. Recover is used to regain health. 208 Spe allows Celebi to outpace max Speed Jolly Gyarados while the rest is placed into bulk.

Calculations

252+ SpA Manaphy Ice Beam vs. 44 HP / 0 SpD Celebi: 180-214 (51.1 - 60.7%) -- guaranteed 2HKO
252+ SpA Life Orb Celebi Leaf Storm vs. 96 HP / 0 SpD Manaphy: 507-595 (138.9 - 163%) -- guaranteed OHKO

Note: Giga Drain is an option over Leaf Storm but the power drop is very noticeable, especially against neutral targets because the base power of LS is almost double that of GD.

 

[Analytic]

Hard Check

Manectric @ Manectite
Ability: Lightning Rod
IVs: 30 Atk / 30 Def
EVs: 252 SpA / 252 Spe / 4 Def
Timid Nature
- Volt Switch
- Thunderbolt
- Hidden Power [Ice]
- Flamethrower

M-Manectric can easily revenge kill Manaphy unless it's got the Tail Glow boost and the Wacan Berry hasn't activated yet. If Manectric comes in while at full health, it will do 49% max with Wacan Berry saving the OHKO while Manaphy can't OHKO back unless it's got off a boost from Tail Glow.

If Manaphy is Lum Berry then M-Manectric has a good chance to OHKO after SR.

 

[Albacore]

Hard Check

Chansey @ Eviolite
EVs: 4 HP / 252 Def / 252 SpD
Bold Nature
- Seismic Toss
- Softboiled
- Toxic
- Heal Bell

Chansey beats any Manaphy set that doesn't run Rain Dance or a Splash Plate, as long as Surf doesn't get a high roll, and Chansey doesn't get burnt by Scald too many times.

+6 252+ SpA Manaphy Surf vs. 4 HP / 252 SpD Eviolite Chansey: 274-324 (42.7 - 50.5%) -- 1.2% chance to 2HKO

 

[escarlata]

M-Manectric can easily revenge kill Manaphy unless it's got the speed boost from the Wacan Berry, and it can even switch in on an unboosted Scald and proceed to then OHKO with Thunderbolt.

What?
Thats not what Wacan Berry does

 

[Analytic]

What?
Thats not what Wacan Berry does

My bad, misread as Salac Berry

 

[p2]

Ferrothorn as a Check

Ferrothorn @ Leftovers
Ability: Iron Barbs
EVs: 252 HP / 88 Def / 168 SpD
Sassy Nature
IVs: 0 Spe
- Leech Seed
- Power Whip
- Gyro Ball
- Stealth Rock

The only move Ferrothorn has to fear is HP Fire or Scald Burns but Ferrothorn can handle most variants that lack HP Fire. Manaphy cannot 2HKO with +3 Ice Beam while Ferrothorn 2HKOes with Power Whip

+3 252 SpA Manaphy Ice Beam vs. 252 HP / 168+ SpD Ferrothorn: 141-167 (40 - 47.4%) -- guaranteed 3HKO after Leftovers recovery
0 Atk Ferrothorn Power Whip vs. 96 HP / 0 Def Manaphy: 246-290 (67.3 - 79.4%) -- guaranteed 2HKO after Leftovers recovery

 

[michaeloche]

Amoonguss @ Black Sludge
Ability: Regenerator
EVs: 252 HP / 136 Def / 120 SpD
Bold Nature
- Spore
- Clear Smog
- Giga Drain
- Foul Play

Role: Check (as long as Manaphy isn't set up yet)

252+ SpA Manaphy Ice Beam vs. 252 HP / 120 SpD Amoonguss: 188-222 (43.5 - 51.3%) -- guaranteed 3HKO after Black Sludge recovery
252 SpA Manaphy Ice Beam vs. 252 HP / 120 SpD Amoonguss: 172-204 (39.8 - 47.2%) -- guaranteed 3HKO after Black Sludge recovery
0 SpA Amoonguss Giga Drain vs. 96 HP / 0 SpD Manaphy: 140-168 (38.3 - 46%) -- guaranteed 3HKO after Leftovers recovery

Spore or Clear Smog both deter Manaphy's attempts to set up. Of course, Spore should not be used while it's raining. In return, Amoonguss can do decent damage with Giga Drain or switch out and get the Regenerator recovery if needed.

 

[Fire-breather Richard]

Medicham @ Medichamite
Ability: Pure Power
EVs: 12 HP / 240 Atk / 252 Spe
Jolly Nature
- High Jump Kick
- Zen Headbutt
- Thunder Punch
- Bullet Punch

Mega Medicham can switch into any move as long as it doesn't get burned by Scald. With the given EVs, Medicham outspeeds Manaphy and OHKOes it with High Jump Kick. Thunder Punch is on the set to 2HKO Slowbro and OHKO Azumarill (both after Rocks) while Bullet Punch allows Medicham to revenge kill Mega Diancie and Weavile.

Calculations

252+ SpA Manaphy Scald vs. 16 HP / 0 SpD Mega Medicham: 136-162 (51.3 - 61.1%) -- guaranteed 2HKO after Stealth Rock
240 Atk Pure Power Mega Medicham High Jump Kick vs. 96 HP / 0 Def Manaphy: 349-412 (95.6 - 112.8%) -- guaranteed OHKO after Stealth Rock

 

[DarkNostalgia]

Clefable @ Leftovers
Ability: Unaware
EVs: 248 HP / 252 Def / 8 SpD
Bold Nature
- Calm Mind
- Moonblast
- Moonlight
- Heal Bell

Unaware Clefable remains as one of the only ways that stall can combat Tail Glow Manaphy, as it is capable of countering Manaphy, bar Rain Dance variants which can bullshit through with Scald burns in tandem with the rain. With Calm Mind, Clefable gains leverage against many special attackers, especially Manaphy, as with multiple boosts Clefable can easily break Manaphy with Moonblast, and Manaphy cannot beat Clefable even with Modest Surf. Moonlight gets reliable recovery for Clefable, and Heal Bell gets rid of status ailments, particularly burns inflicted by Scald, as Clefable lacks Magic Guard in this set and does not like status.

 

[GnralLao]

Magnezone as a Check

Magnezone @ Choice Scarf
Ability: Magnet Pull
EVs: 4 Def / 252 SpA / 252 Spe
Timid Nature
IVs: 0 Atk / 30 SpA / 30 Spe
- Volt Switch
- Hidden Power Fire
- Flash Cannon
- Thunderbolt

Magnezone can switch into any non-STAB move from Manaphy (and Tail Glow) bar HP Fire before proceeding to outspeed and 2HKO Manaphy at worst (Lum variants can be OHKOed after SR).

Calcs

252+ SpA Manaphy Ice Beam vs. 0 HP / 0 SpD Magnezone: 49-58 (17.4 - 20.6%) -- possible 5HKO
252+ SpA Manaphy Surf vs. 0 HP / 0 SpD Magnezone: 147-174 (52.3 - 61.9%) -- guaranteed 2HKO

252 SpA Magnezone Thunderbolt vs. 96 HP / 0 SpD Wacan Berry Manaphy: 147-174 (40.2 - 47.6%) -- guaranteed 3HKO
252 SpA Magnezone Thunderbolt vs. 96 HP / 0 SpD Manaphy: 294-348 (80.5 - 95.3%) -- 50% chance to OHKO after Stealth Rock

 

[MikeDawg]

Amoonguss @ Black Sludge
Ability: Regenerator
EVs: 252 HP / 136 Def / 120 SpD
Bold Nature
- Spore
- Clear Smog
- Giga Drain
- Foul Play

Role: Check (as long as Manaphy isn't set up yet)

252+ SpA Manaphy Ice Beam vs. 252 HP / 120 SpD Amoonguss: 188-222 (43.5 - 51.3%) -- guaranteed 3HKO after Black Sludge recovery
252 SpA Manaphy Ice Beam vs. 252 HP / 120 SpD Amoonguss: 172-204 (39.8 - 47.2%) -- guaranteed 3HKO after Black Sludge recovery
0 SpA Amoonguss Giga Drain vs. 96 HP / 0 SpD Manaphy: 140-168 (38.3 - 46%) -- guaranteed 3HKO after Leftovers recovery

Spore or Clear Smog both deter Manaphy's attempts to set up. Of course, Spore should not be used while it's raining. In return, Amoonguss can do decent damage with Giga Drain or switch out and get the Regenerator recovery if needed.

When is manaphy not going to be set up? It tail glows on the switchin. Maybe you could switch in if they scald out of fear that thundy or raikou or something is coming in, but that still doesn't accomplish much.

 

[DoABarrelRoll]

(hard check)

Abomasnow @ Abomasite
Ability: Soundproof
EVs: 252 HP / 252 Atk / 4 SpD
Brave Nature
- Wood Hammer
- Ice Shard
- Earthquake
- Swords Dance

although barely viable in OU, mega aboma is able to switch into anything manaphy throws at it unless it has HP Fire, survive the incoming attack and defeat it with a Wood Hammer. at +0, it can even take Ice Beam + HP Fire, although both mons will faint in the process. the only way it loses is if mana is a HP Fire variant and uses tail glow on the switch.

calcs:
252+ SpA Manaphy Surf vs. 252 HP / 4 SpD Mega Abomasnow: 64-76 (16.6 - 19.7%) -- guaranteed 6HKO
252+ SpA Manaphy Ice Beam vs. 252 HP / 4 SpD Mega Abomasnow: 86-102 (22.3 - 26.5%) -- 16.9% chance to 4HKO
252+ SpA Manaphy Hidden Power Fire vs. 252 HP / 4 SpD Mega Abomasnow: 228-272 (59.3 - 70.8%) -- guaranteed 2HKO
+3 252+ SpA Manaphy Ice Beam vs. 252 HP / 4 SpD Mega Abomasnow: 214-252 (55.7 - 65.6%) -- guaranteed 2HKO
252+ Atk Mega Abomasnow Wood Hammer vs. 80 HP / 0 Def Manaphy: 438-516 (121.3 - 142.9%) -- guaranteed OHKO

 

[kingmidas]

Mega Slowbro as a Hard Check / Counter (if and only if Manaphy doesn't carry Energy Ball)

Slowbro @ Slowbronite
Ability: Regenerator
EVs: 252 HP / 80 Def / 176 SpD
Bold Nature
- Calm Mind
- Scald
- Psyshock
- Slack Off

M-Bro can switch into anything from EB-less Manaphy (Scald burns suck though, but it won't be poisoned at least), set up Calm Minds and win. The worst case scenario (without Energy Ball in it) would be:

Turn #1:
M-Bro switches into Manaphy.
Manaphy uses Tail Glow.

Turn #2:
Manaphy uses Tail Glow (even Modest ones can't 2HKO at +3).
M-Bro uses Calm Mind.

Turn #3:
Manaphy uses Surf (does up to 52.5% (207 HP)).
M-Bro uses Calm Mind.

Turn #4:
Manaphy uses Surf (does up to 39.5% (156 HP), which leaves M-Bro at 8% (31 HP)).
M-Bro uses Slack Off.

After that, M-Bro wins the confrontation against Manaphy (SR can be troublesome, but it still has some decent chances to survive this exact situation with them included) by setting up more Calm Minds (M-Bro OHKOes at +5 or at +4 after SR) or by simply 2HKOing after those two Calm Minds. If Manaphy was Timid instead of Modest, M-Bro would've won this situation even after SR damage.

Calcs

252+ SpA Manaphy Surf vs. 252 HP / 176 SpD Mega Slowbro: 66-78 (16.7 - 19.7%) -- guaranteed 6HKO
+3 252+ SpA Manaphy Surf vs. 252 HP / 176 SpD Mega Slowbro: 165-195 (41.8 - 49.4%) -- guaranteed 3HKO
+6 252+ SpA Manaphy Surf vs. +1 252 HP / 176 SpD Mega Slowbro: 176-207 (44.6 - 52.5%) -- 22.7% chance to 2HKO
+6 252+ SpA Manaphy Surf vs. +2 252 HP / 176 SpD Mega Slowbro: 132-156 (33.5 - 39.5%) -- guaranteed 3HKO

+2 0 SpA Mega Slowbro Psyshock vs. 96 HP / 0 Def Manaphy: 216-255 (59.1 - 69.8%) -- guaranteed 2HKO
+4 0 SpA Mega Slowbro Psyshock vs. 96 HP / 0 Def Manaphy: 322-381 (88.2 - 104.3%) -- guaranteed OHKO after Stealth Rock
+5 0 SpA Mega Slowbro Psyshock vs. 96 HP / 0 Def Manaphy: 376-444 (103 - 121.6%) -- guaranteed OHKO

Manaphy just tailglows twice and keeps spamming a stab. Also unlike psychic energy ball is standard so its just a check, counter needs to handle every move.

 

[GnralLao]

Manaphy just tailglows twice and keeps spamming a stab. Also unlike psychic energy ball is standard so its just a check, counter needs to handle every move.

Remember, something can be a counter and lose to a move that is slashed; it will just (likely) lose out to a mon that handles all of the moves slashed.

Energy Ball may be somewhat standard, but it's still slashed in the set, so this particular set may or may not have it (just like Psychic). I also provided all the calcs needed to prove that M-Slowbro survives the combination of +6 Modest Surf after one CM and +6 Modest Surf after two CM before Slacking Off the damage away and KOing Manaphy if it lacked Energy Ball. I won't argue my point any further so the thread won't be cluttered with more-or-less relevant posts.

 

[Aragorn the King]

Week 66: (btw congrats to escarlata for making it into the hall of fame!)

Thundurus-Therian (M) @ Leftovers / Life Orb
Ability: Volt Absorb
EVs: 4 Def / 252 SpA / 252 Spe
Modest Nature
IVs: 0 Atk / 30 Def
- Agility
- Thunderbolt
- Focus Blast
- Hidden Power Ice / Hidden Power Flying

 

[p2]

Weavile as a Check

Weavile @ Life Orb
Ability: Pressure
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- Icicle Crash
- Knock Off
- Ice Shard
- Swords Dance / Low Kick

Weavile outspeeds and OHKOes Thundurus-T while having Ice Shard for picking off weakened +2 Speed Thundurus-T.
Weavile is really frail, so it really struggles to switch into Thundurus.

252 Atk Life Orb Weavile Icicle Crash vs. 0 HP / 4 Def Thundurus-T: 460-541 (154.3 - 181.5%) -- guaranteed OHKO
252 Atk Life Orb Weavile Ice Shard vs. 0 HP / 4 Def Thundurus-T: 218-257 (73.1 - 86.2%) -- guaranteed 2HKO after Leftovers recovery

 

[InvisibleWater]

Check

Kyurem-Black @ Choice Scarf
Ability: Teravolt
EVs: 252 Atk / 32 SpA / 224 Spe
Naive Nature
- Ice Beam
- Outrage
- Fusion Bolt
- Dragon Claw

With a Choice Scarf, Kyurem-B outspeeds Thundurus, allowing it to switch in on anything except Focus Blast (or HP Flying if hazards are up) and 1HKO with Ice Beam or Outrage.

However, other than praying for a Focus Blast miss, Kyurem-B lacks a reliable method of finishing off a +2 Thundurus, especially if hazards are up or it has taken prior damage.

Calcs

Offensive:
252 Atk Teravolt Kyurem-B Outrage vs. 0 HP / 4 Def Thundurus-T: 322-379 (107.6 - 126.7%) -- guaranteed OHKO
252 Atk Teravolt Kyurem-B Dragon Claw vs. 0 HP / 4 Def Thundurus-T: 214-253 (71.5 - 84.6%) -- guaranteed 2HKO
252 Atk Teravolt Kyurem-B Fusion Bolt vs. 0 HP / 4 Def Thundurus-T: 179-211 (59.8 - 70.5%) -- guaranteed 2HKO
32 SpA Teravolt Kyurem-B Ice Beam vs. 0 HP / 0 SpD Thundurus-T: 282-332 (94.3 - 111%) -- 62.5% chance to OHKO

Defensive:

Leftovers

252+ SpA Thundurus-T Thunderbolt vs. 0 HP / 0- SpD Kyurem-B: 106-126 (27.1 - 32.2%) -- guaranteed 4HKO
252+ SpA Thundurus-T Focus Blast vs. 0 HP / 0- SpD Kyurem-B: 378-446 (96.6 - 114%) -- 81.3% chance to OHKO
252+ SpA Thundurus-T Hidden Power Ice vs. 0 HP / 0- SpD Kyurem-B: 95-112 (24.2 - 28.6%) -- 98.6% chance to 4HKO
252+ SpA Thundurus-T Hidden Power Flying vs. 0 HP / 0- SpD Kyurem-B: 142-168 (36.3 - 42.9%) -- guaranteed 3HKO

Life Orb

252+ SpA Life Orb Thundurus-T Thunderbolt vs. 0 HP / 0- SpD Kyurem-B: 138-164 (35.2 - 41.9%) -- guaranteed 3HKO
252+ SpA Life Orb Thundurus-T Focus Blast vs. 0 HP / 0- SpD Kyurem-B: 491-580 (125.5 - 148.3%) -- guaranteed OHKO
252+ SpA Life Orb Thundurus-T Hidden Power Ice vs. 0 HP / 0- SpD Kyurem-B: 123-146 (31.4 - 37.3%) -- 82.9% chance to 3HKO
252+ SpA Life Orb Thundurus-T Hidden Power Flying vs. 0 HP / 0- SpD Kyurem-B: 185-218 (47.3 - 55.7%) -- 77.3% chance to 2HKO

 

[heritage]

My baby <3
Counter

Goodra @ Assault Vest
Ability: Sap Sipper
EVs: 240 HP / 252 SpA / 16 Spe
Modest Nature
- Draco Meteor
- Fire Blast
- Sludge Bomb / Thunderbolt
- Earthquake

Although a bit unorthodox, Goodra easily switches into even a Life Orb Hidden Power Ice with plenty of health left to spare, handily OHKOing Thundurus-T back with Draco Meteor after a round of Life Orb recoil or Stealth Rock damage. (If Thundurus-t isn't Life Orb or if it has Hidden Power Flying then it can't even come close to hurting Goodra) Lacking recovery does suck, but even then, Goodra can take up to 4 hits with relative ease.

damage is that you

252+ SpA Thundurus-T Hidden Power Ice vs. 240 HP / 0 SpD Assault Vest Goodra: 74-88 (19.4 - 23%) -- possible 5HKO

252+ SpA Life Orb Thundurus-T Thunderbolt vs. 240 HP / 0 SpD Assault Vest Goodra: 53-62 (13.9 - 16.2%) -- possible 7HKO

252+ SpA Life Orb Thundurus-T Hidden Power Ice vs. 240 HP / 0 SpD Assault Vest Goodra: 96-114 (25.1 - 29.9%) -- guaranteed 4HKO

252+ SpA Life Orb Thundurus-T Hidden Power Flying vs. 240 HP / 0 SpD Assault Vest Goodra: 71-86 (18.6 - 22.5%) -- possible 5HKO

What Goodra does

252+ SpA Goodra Draco Meteor vs. 4 HP / 0 SpD Thundurus-T: 252-297 (84.2 - 99.3%) -- guaranteed 2HKO

 

[Sanger Zonvolt]

Name: CM Mega Latias
Status: Counter

(^I think that's a Mega Latias)
Latias @ Latiasite
Ability: Levitate
EVs: 248 HP / 76 Def / 184 Spe
Bold Nature
- Calm Mind
- Roost
- Reflect Type / Substitute
- Stored Power / Psyshock

Thanks to Mega Latias's bulk and typing, it can come in on most of what Thundurus-T can throw at it. If it's carrying HP Flying, Mega Latias can even set up on it. It should be noted that the spread given is slightly different from the dex one since by moving 8 EVs to speed you can outspeed Thundurus-T if it doesn't use Agility, which only costs you 2 Defense in exchange for making it much easier to take on Thundurus-T if it uses Hidden Power Ice.

Calcs and Info for HP Ice Scenarios

252+ SpA Life Orb Thundurus-T Thunderbolt vs. 248 HP / 0 SpD Mega Latias: 79-94 (21.7 - 25.8%) -- 100% chance to 4HKO after Stealth Rock

252+ SpA Life Orb Thundurus-T Hidden Power Ice vs. 248 HP / 0 SpD Mega Latias: 143-169 (39.3 - 46.5%) -- 26.2% chance to 2HKO after Stealth Rock

If you come in on an offensive move, then you can set up a Calm Mind, which will put you well out of the 2HKO range of Hidden Power Ice, which will let you set up more Calm Minds and safely Roost even if it decides to use Agility later:

252+ SpA Life Orb Thundurus-T Hidden Power Ice vs. +1 248 HP / 0 SpD Mega Latias: 96-114 (26.4 - 31.4%) -- 34.2% chance to 3HKO after Stealth Rock

If you come in on Agility, it gets a little more problematic since you lose the speed advantage, but you can still get off 1 Calm Mind and simply Roost until you get a comfy HP Zone provided that you have most of your HP:

On Switch In: Mega Latias's HP = 87.5%; Thundy-T uses Agility
T1: Thundy-T uses HP Ice; Mega Latias use CM; Mega Latia's HP >= 43.0%
T2: Tundy-T uses HP Ice (Latias's HP >= 11.6%); Mega Latias uses Roost; Mega Latia's HP >= 61.6%

From there you can comfortably Roost until you're at full HP. Thus, so long as you Mega Latias still has about 90% of its HP, which isn't too hard given its bulk and Roost, it's still guaranteed to win.

Calcs and info for HP Flying Scenarios

252+ SpA Life Orb Thundurus-T Thunderbolt vs. +1 248 HP / 0 SpD Mega Latias: 53-62 (14.6 - 17%) -- guaranteed 6HKO after Stealth Rock

252+ SpA Life Orb Thundurus-T Hidden Power Flying vs. +1 248 HP / 0 SpD Mega Latias: 71-86 (19.5 - 23.6%) -- 27.3% chance to 4HKO after Stealth Rock

Needless to say Thundy-T's pretty much set-up fodder if it's using Hidden Power Flying.