27 vs
252 Atk Charizard-Mega-X Fire Lash vs. 252 HP / 48 Def Corviknight: 218-260 (54.5 - 65%) -- guaranteed 2HKO after Leftovers recovery
252 Atk Charizard-Mega-X Flare Blitz vs. 252 HP / 48 Def Corviknight: 330-390 (82.5 - 97.5%) -- guaranteed 2HKO after Leftovers recovery
0 Atk Corviknight Brave Bird vs. 0 HP / 0 Def Charizard-Mega-X: 150-177 (40.6 - 47.9%) -- guaranteed 3HKO
27 lives 2 brave birds and threatens the 2HKO
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27 vs
252 Atk Charizard-Mega-X Dragon Claw vs. 248 HP / 0 Def Rotom-Heat: 114-135 (37.6 - 44.5%) -- guaranteed 3HKO
8 SpA Rotom-Heat Overheat vs. 0 HP / 0 SpD Charizard-Mega-X: 57-67 (15.4 - 18.1%) -- possible 6HKO
8 SpA Rotom-Heat Volt Switch vs. 0 HP / 0 SpD Charizard-Mega-X: 61-72 (16.5 - 19.5%) -- possible 6HKO
Rotom really can't do anything except toxic or volt switch here.
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27 vs
252 Atk Charizard-Mega-X Flare Blitz vs. 0 HP / 0 Def Jirachi: 360-426 (105.5 - 124.9%) -- guaranteed OHKO
252 Atk Charizard-Mega-X Fire Lash vs. 0 HP / 0 Def Jirachi: 240-284 (70.3 - 83.2%) -- guaranteed 2HKO
252 Atk Jirachi Iron Head vs. 0 HP / 0 Def Charizard-Mega-X: 71-84 (19.2 - 22.7%) -- possible 5HKO
Iron Head doesn't do much, and 27 can threaten the OHKO with Blitz or the 2HKO with Lash.
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27 vs
252 Atk Charizard-Mega-X Flare Blitz vs. 0 HP / 0 Def Caribolt: 422-500 (136.5 - 161.8%) -- guaranteed OHKO
+2 252 Atk Magnet Galvanize Caribolt Body Slam vs. 0 HP / 0 Def Charizard-Mega-X: 224-264 (60.7 - 71.5%) -- guaranteed 2HKO
+2 252 Atk Magnet Galvanize Caribolt Double-Edge vs. 0 HP / 0 Def Charizard-Mega-X: 317-373 (85.9 - 101%) -- 12.5% chance to OHKO
I'm assuming Caribolt goes for the Swords Dance on the switch, but if it doesn't, 27 outspeeds and OHKOs caribolt either way.
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27 vs
252 Atk Charizard-Mega-X Fire Lash vs. 252 HP / 252+ Def Ferrothorn: 288-340 (81.8 - 96.5%) -- guaranteed 2HKO after Leftovers recovery
252 Atk Charizard-Mega-X Flare Blitz vs. 252 HP / 252+ Def Ferrothorn: 432-508 (122.7 - 144.3%) -- guaranteed OHKO
252+ Def Ferrothorn Body Press vs. 0 HP / 0 Def Charizard-Mega-X: 125-148 (33.8 - 40.1%) -- guaranteed 3HKO
27 does beat ferro, but ferro is still a bit of a nuisance because of knock off and iron barbs (and potentially rocky helmet), but naturally as a fire type it does threaten it out.
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27 vs
Zeraora matchup is tricky because while it can live two close combats, that's only before bulk up boosts. Bulk Up can also be used to circumvent Fire Lash defense drops (in case 27 gets that). Actually the best course of action for 27 is to just burn Zeraora, and since it can live 2 CCs it doesn't matter what Zera does, if it boosts twice, Zera loses the double attack to burn, and if it attacks twice it severely weakens 27 while getting crippled. If it boosts once/attacks once it weakens 27 less and is less crippled but still kinda crippled. 27 can OHKO through CC drops too, but with blitz recoil that's risky.
252 Atk Charizard-Mega-X Flare Blitz vs. -1 0 HP / 0 Def Zeraora: 342-403 (107.8 - 127.1%) -- guaranteed OHKO
252 Atk Charizard-Mega-X Fire Lash vs. -2 0 HP / 0 Def Zeraora: 304-358 (95.8 - 112.9%) -- 75% chance to OHKO after Leftovers recovery
252 SpA Charizard-Mega-X Draco Meteor over 5 turns vs. -1 0 HP / 4 SpD Zeraora: 380-449 (119.8 - 141.6%) -- guaranteed KO in 5 turns after Leftovers recovery
+1 252 Atk Zeraora Close Combat vs. 0 HP / 0 Def Charizard-Mega-X: 229-270 (62 - 73.1%) -- guaranteed 2HKO
+2 252 Atk Zeraora Close Combat vs. 0 HP / 0 Def Charizard-Mega-X: 305-359 (82.6 - 97.2%) -- guaranteed 2HKO
+1 252 Atk burned Zeraora Close Combat vs. 0 HP / 0 Def Charizard-Mega-X: 114-135 (30.8 - 36.5%) -- 65.6% chance to 3HKO
+2 252 Atk burned Zeraora Close Combat vs. 0 HP / 0 Def Charizard-Mega-X: 152-179 (41.1 - 48.5%) -- guaranteed 3HKO
27 really isn't the best answer to Zera, but it can cripple it if it's healthy.
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27 vs
252 Atk Charizard-Mega-X Flare Blitz vs. 252 HP / 4 Def Clefable: 232-274 (58.8 - 69.5%) -- guaranteed 2HKO after Leftovers recovery
252 Atk Charizard-Mega-X Fire Lash vs. 252 HP / 4 Def Clefable: 154-183 (39 - 46.4%) -- guaranteed 3HKO after Leftovers recovery
252 Atk Charizard-Mega-X Fire Lash vs. -1 252 HP / 4 Def Clefable: 232-274 (58.8 - 69.5%) -- guaranteed 2HKO after Leftovers recovery
0 SpA Clefable Moonblast vs. 0 HP / 0 SpD Charizard-Mega-X: 153-180 (41.4 - 48.7%) -- guaranteed 3HKO
Slightly in Clef's favor due to lefties and blitz recoil but neither of them want to switch into each other, and 27 can win.
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27 vs
252 Atk Charizard-Mega-X Dragon Claw vs. 252 HP / 252+ Def Seismitoad: 103-123 (24.8 - 29.7%) -- 0% chance to 4HKO after Leftovers recovery
0 SpA Seismitoad Earth Power vs. 0 HP / 0 SpD Charizard-Mega-X: 264-312 (71.5 - 84.5%) -- guaranteed 2HKO
Seis just beats 27, and can switchin to it. As mentioned earlier though, a special set can bait seis out and win.
252 SpA Life Orb Charizard-Mega-X Draco Meteor over 2 turns vs. 252 HP / 4 SpD Seismitoad: 415-492 (100.2 - 118.8%) -- guaranteed KO in 2 turns after Leftovers recovery
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27 vs
252 Atk Charizard-Mega-X Flare Blitz vs. 0 HP / 0 Def Kerfluffle: 204-241 (66 - 77.9%) -- guaranteed 2HKO
252 SpA Life Orb Kerfluffle Focus Blast vs. 0 HP / 0 SpD Charizard-Mega-X: 364-429 (98.6 - 116.2%) -- 87.5% chance to OHKO
Kerf wins. Kerf can come in on predicted status or dragon moves from 27, It doesn't really wanna take blitzes though, but it can take one if it needs to, and still win most of the time.
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27 vs
252 Atk Charizard-Mega-X Dragon Claw vs. 252 HP / 0 Def Mollux: 141-166 (35.7 - 42.1%) -- 90.4% chance to 3HKO after Black Sludge recovery
(fire lash + 2 dragon claws kills it 100% of the time)
4 SpA Mollux Sludge Bomb vs. 0 HP / 0 SpD Charizard-Mega-X: 190-225 (51.4 - 60.9%) -- guaranteed 2HKO
mollux beats 27 1v1 as it reliably 2HKOs and can stomach 2 attacks from 27, but it doesn't want to switch in. It can switch in on a predicted Toxic/WoW and threaten 27 out though.
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27 vs
252 Atk Charizard-Mega-X Flare Blitz vs. 0 HP / 4 Def Excadrill: 542-638 (150.1 - 176.7%) -- guaranteed OHKO
252 Atk Charizard-Mega-X Fire Lash vs. 0 HP / 4 Def Excadrill: 360-426 (99.7 - 118%) -- 93.8% chance to OHKO after Leftovers recovery
252 Atk Mold Breaker Excadrill Earthquake vs. 0 HP / 0 Def Charizard-Mega-X: 438-516 (118.6 - 139.8%) -- guaranteed OHKO
27 and Excadrill won't wanna switchin to each other, but 1v1, 27 beats nonscarf drill.
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27 vs
252 Atk Charizard-Mega-X Flare Blitz vs. 252 HP / 80 Def Equilibra: 342-404 (83.8 - 99%) -- guaranteed 2HKO
124+ SpA Equilibra Earth Power vs. 0 HP / 0 SpD Charizard-Mega-X: 468-552 (126.8 - 149.5%) -- guaranteed OHKO
Current Equilibra set just barely lives a Flare Blitz from 27 and can KO with an earth power.
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27 vs
252 Atk Choice Band Terrakion Close Combat vs. 0 HP / 0 Def Charizard-Mega-X: 379-447 (102.7 - 121.1%) -- guaranteed OHKO
252 Atk Terrakion Stone Edge vs. 0 HP / 0 Def Charizard-Mega-X: 422-498 (114.3 - 134.9%) -- guaranteed OHKO
252 Atk burned Terrakion Stone Edge vs. 0 HP / 0 Def Charizard-Mega-X: 211-249 (57.1 - 67.4%) -- guaranteed 2HKO
252 Atk Charizard-Mega-X Dragon Claw vs. 0 HP / 4 Def Terrakion: 130-154 (40.2 - 47.6%) -- guaranteed 3HKO
252 SpA Life Orb Charizard-Mega-X Draco Meteor vs. 0 HP / 0 SpD Terrakion: 242-285 (74.9 - 88.2%) -- guaranteed 2HKO
Terrakion bodies 27. This spread is designed with the idea being able to encourage Terrakion (and other bulky rock types really) to come in and burn it on the switch.
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27 vs
252+ Atk Choice Band Tyranitar Earthquake vs. 0 HP / 0 Def Charizard-Mega-X: 476-560 (128.9 - 151.7%) -- guaranteed OHKO
252+ Atk Tyranitar Stone Edge vs. 0 HP / 0 Def Charizard-Mega-X: 476-564 (128.9 - 152.8%) -- guaranteed OHKO
252 Atk Charizard-Mega-X Dragon Claw vs. 100 HP / 0 Def Tyranitar: 111-132 (30.3 - 36%) -- guaranteed 4HKO after Leftovers recovery
Much like the Terrakion matchup, 27 can't really do anything to TTar except burn it.
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27 vs
252 SpA Stratagem Paleo Wave vs. 0 HP / 0 SpD Charizard-Mega-X: 408-482 (110.5 - 130.6%) -- guaranteed OHKO
252 Atk Charizard-Mega-X Dragon Claw vs. 4 HP / 0 Def Stratagem: 171-202 (53.1 - 62.7%) -- guaranteed 2HKO
27
can 2HKO Stratagem, but just like the other rock types, it gets one shotted. 27 can cripple with paralyze on the switch here, or help wear it down with burn or poison.
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27 vs
252 Atk Charizard-Mega-X Flare Blitz vs. 0 HP / 4 Def Thick Fat Mamoswine: 216-254 (59.8 - 70.3%) -- guaranteed 2HKO
252 Atk Charizard-Mega-X Fire Lash vs. 0 HP / 4 Def Thick Fat Mamoswine: 144-170 (39.8 - 47%) -- guaranteed 3HKO
252 Atk Charizard-Mega-X Fire Lash vs. -1 0 HP / 4 Def Thick Fat Mamoswine: 218-258 (60.3 - 71.4%) -- guaranteed 2HKO
252+ Atk Choice Band Mamoswine Earthquake vs. 0 HP / 0 Def Charizard-Mega-X: 696-822 (188.6 - 222.7%) -- guaranteed OHKO
27 can 2HKO mamo with either blitz or lash, but mamo OHKO's with Quake.
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27 vs
252 Atk Charizard-Mega-X Fire Lash vs. 0 HP / 0 Def Syclant: 640-760 (227.7 - 270.4%) -- guaranteed OHKO
252 Atk Choice Band Syclant Earthquake vs. 0 HP / 0 Def Charizard-Mega-X: 390-460 (105.6 - 124.6%) -- guaranteed OHKO
Like the matchup against Mamoswine, 27 can kill Syclant, but loses 1v1.
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27 vs
252 Atk Charizard-Mega-X Flare Blitz vs. 0 HP / 4 Def Colossoil: 235-277 (57.7 - 68%) -- guaranteed 2HKO after burn damage
252 Atk Guts Colossoil Earthquake vs. 0 HP / 0 Def Charizard-Mega-X: 608-716 (164.7 - 194%) -- guaranteed OHKO
252 Atk Guts Colossoil Sucker Punch vs. 0 HP / 0 Def Charizard-Mega-X: 213-252 (57.7 - 68.2%) -- guaranteed 2HKO
27 doesn't really wanna face soil, and it's can't even status it because of guts, but soil doesn't really wanna switch in either.
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27 vs :krillowatt:
252 Atk Charizard-Mega-X Dragon Claw vs. 0 HP / 0 Def Krilowatt: 156-184 (35.2 - 41.5%) -- guaranteed 3HKO
252 SpA Life Orb Krilowatt Earth Power vs. 0 HP / 0 SpD Charizard-Mega-X: 294-346 (79.6 - 93.7%) -- guaranteed 2HKO
Krill wins 1v1, but doesn't necessarily want to switch in. Magic guard and electric type means it doesn't fear status (outside of sleep).
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27 vs
252 Atk Charizard-Mega-X Flare Blitz vs. 0 HP / 0 Def Aurumoth: 362-428 (100.2 - 118.5%) -- guaranteed OHKO
+1 252 Atk Aurumoth Zen Headbutt vs. 0 HP / 0 Def Charizard-Mega-X: 240-283 (65 - 76.6%) -- guaranteed 2HKO
Can check DDance aurumoth at one boost.
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27 vs
252 Atk Charizard-Mega-X Dragon Claw vs. 0 HP / 0 Def Hydreigon: 264-312 (81.2 - 96%) -- guaranteed 2HKO
252 Atk Life Orb Charizard-Mega-X Dragon Claw vs. 0 HP / 0 Def Hydreigon: 343-406 (105.5 - 124.9%) -- guaranteed OHKO
0 SpA Life Orb Charizard-Mega-X Draco Meteor vs. 0 HP / 4 SpD Hydreigon: 374-439 (115 - 135%) -- guaranteed OHKO
252 SpA Hydreigon Draco Meteor vs. 0 HP / 0 SpD Charizard-Mega-X: 642-756 (173.9 - 204.8%) -- guaranteed OHKO
Hydreigon usually wins, especially if scarf, but a life orb set or mixed/special 27 can OHKO.
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27 vs
252 Atk Charizard-Mega-X Dragon Claw vs. 0 HP / 0 Def Pajantom: 320-378 (103.5 - 122.3%) -- guaranteed OHKO
252 Atk Choice Band Pajantom Earthquake vs. 0 HP / 0 Def Charizard-Mega-X: 430-508 (116.5 - 137.6%) -- guaranteed OHKO
252 Atk Choice Band Pajantom Outrage vs. 0 HP / 0 Def Charizard-Mega-X: 774-912 (209.7 - 247.1%) -- guaranteed OHKO
Paj is definitely very threatening, but 27 can outspeed it and OHKO it.
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27 vs
0 SpA Life Orb Charizard-Mega-X Draco Meteor vs. 252 HP / 0 SpD Cyclohm: 460-541 (109.5 - 128.8%) -- guaranteed OHKO
0- SpA Charizard-Mega-X Draco Meteor vs. 252 HP / 0 SpD Cyclohm: 318-374 (75.7 - 89%) -- guaranteed 2HKO after Leftovers recovery
252 Atk Charizard-Mega-X Dragon Claw vs. 252 HP / 240+ Def Cyclohm: 156-186 (37.1 - 44.2%) -- 99.8% chance to 3HKO after Leftovers recovery
0 SpA Cyclohm Draco Meteor vs. 0 HP / 0 SpD Charizard-Mega-X: 476-564 (128.9 - 152.8%) -- guaranteed OHKO
0 SpA Cyclohm Ice Beam vs. 0 HP / 0 SpD Charizard-Mega-X: 111-131 (30 - 35.5%) -- 28.1% chance to 3HKO
27 really doesn't wanna hit ohm with physical attacks due to rocky helmet and static, but Draco Meteor even if completely uninvested with a hindering nature still 2HKOs easily, and rarely any cyclohm's carry dragon moves to hit 27 with, so ohm is certainly manageable for 27.
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27 vs
252 SpA Life Orb Charizard-Mega-X Draco Meteor vs. 252 HP / 0 SpD Kommo-o: 421-499 (118.9 - 140.9%) -- guaranteed OHKO
252 Atk Charizard-Mega-X Dragon Claw vs. 252 HP / 120+ Def Kommo-o: 164-194 (46.3 - 54.8%) -- 9.4% chance to 2HKO after Leftovers recovery
252 Atk Life Orb Charizard-Mega-X Dragon Claw vs. 252 HP / 120+ Def Kommo-o: 213-252 (60.1 - 71.1%) -- guaranteed 2HKO after Leftovers recovery
0 Atk Kommo-o Earthquake vs. 0 HP / 0 Def Charizard-Mega-X: 204-240 (55.2 - 65%) -- guaranteed 2HKO
Kommo-o is bulky but is slower than 27 and really doesn't want to be taking hits from it.
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27 vs
252 SpA Choice Specs Kyurem Ice Beam vs. 0 HP / 0 SpD Charizard-Mega-X: 342-403 (92.6 - 109.2%) -- 56.3% chance to OHKO
252 SpA Choice Specs Kyurem Draco Meteor vs. 0 HP / 0 SpD Charizard-Mega-X: 986-1164 (267.2 - 315.4%) -- guaranteed OHKO
252 SpA Choice Specs Kyurem Earth Power vs. 0 HP / 0 SpD Charizard-Mega-X: 456-538 (123.5 - 145.7%) -- guaranteed OHKO
252 Atk Charizard-Mega-X Dragon Claw vs. 0 HP / 4 Def Kyurem: 260-308 (66.4 - 78.7%) -- guaranteed 2HKO
252 Atk Life Orb Charizard-Mega-X Dragon Claw vs. 0 HP / 4 Def Kyurem: 338-400 (86.4 - 102.3%) -- 12.5% chance to OHKO
252 SpA Life Orb Charizard-Mega-X Draco Meteor vs. 0 HP / 0 SpD Kyurem: 484-569 (123.7 - 145.5%) -- guaranteed OHKO
Kyurem hits like a truck and is naturally really bulky so 27 completely fails to OHKO without a Life Orb, and it's unreliable unless using Draco Meteor.
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27 vs
252 Atk Charizard-Mega-X Flare Blitz vs. 0 HP / 4 Def Primarina: 114-135 (37.8 - 44.8%) -- guaranteed 3HKO
252+ SpA Choice Specs Primarina Moonblast vs. 0 HP / 0 SpD Charizard-Mega-X: 388-457 (105.1 - 123.8%) -- guaranteed OHKO
Primarina counters.
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27 vs
252 Atk Charizard-Mega-X Dragon Claw vs. 252 HP / 252+ Def Toxapex: 64-76 (21 - 25%) -- possible 5HKO after Black Sludge recovery
0 SpA Toxapex Scald vs. 0 HP / 0 SpD Charizard-Mega-X: 81-96 (21.9 - 26%) -- 3.4% chance to 4HKO
Tox can heal and toxic stall 27
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27 vs
-1 252 Atk Charizard-Mega-X Flare Blitz vs. 252 HP / 92 Def Tomohawk: 118-141 (28.5 - 34%) -- 1.6% chance to 3HKO
-1 252 Atk Charizard-Mega-X Dragon Claw vs. 252 HP / 92 Def Tomohawk: 79-94 (19 - 22.7%) -- possible 5HKO
28+ SpA Tomohawk Focus Blast vs. 0 HP / 0 SpD Charizard-Mega-X: 255-300 (69.1 - 81.3%) -- guaranteed 2HKO
28+ SpA Tomohawk Hurricane vs. 0 HP / 0 SpD Charizard-Mega-X: 234-276 (63.4 - 74.7%) -- guaranteed 2HKO
Tomo does indeed counter Physical 27, but not special 27 :D.
252 SpA Life Orb Charizard-Mega-X Fire Blast vs. 252 HP / 0 SpD Tomohawk: 224-265 (54.1 - 64%) -- guaranteed 2HKO
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27 vs
252 Atk Life Orb Charizard-Mega-X Dragon Claw vs. 252 HP / 252+ Def Arghonaut: 117-138 (28.2 - 33.3%) -- 92.7% chance to 4HKO after Leftovers recovery
252 Atk Charizard-Mega-X Dragon Claw vs. 252 HP / 252+ Def Arghonaut: 90-106 (21.7 - 25.6%) -- possible 5HKO after Leftovers recovery
0 Atk Arghonaut Knock Off (97.5 BP) vs. 0 HP / 0 Def Charizard-Mega-X: 98-116 (26.5 - 31.4%) -- guaranteed 4HKO
0 Atk Arghonaut Circle Throw vs. 0 HP / 0 Def Charizard-Mega-X: 91-108 (24.6 - 29.2%) -- 99.8% chance to 4HKO
0 Atk Arghonaut Earthquake vs. 0 HP / 0 Def Charizard-Mega-X: 204-240 (55.2 - 65%) -- guaranteed 2HKO
Argh pretty much just walls 27, although Argh doesn't exactly do much in return unless it carries CC/EQ, but argh can knock off 27's item which 27 doesn't like, and can heal up against 27. 27 can burn Argh or nuke it with draco meteor if special.
252 SpA Life Orb Charizard-Mega-X Draco Meteor vs. 252 HP / 4 SpD Arghonaut: 220-259 (53.1 - 62.5%) -- guaranteed 2HKO after Leftovers recovery
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27 vs
252 Atk Charizard-Mega-X Flare Blitz vs. 252 HP / 252+ Def Hippowdon: 117-138 (27.8 - 32.8%) -- 76.1% chance to 4HKO after Leftovers recovery
0 Atk Hippowdon Earthquake vs. 0 HP / 0 Def Charizard-Mega-X: 308-366 (83.4 - 99.1%) -- guaranteed 2HKO after sandstorm damage
Hippo walls 27. 27 can burn Hippo, or kill it with a special set.
252 SpA Life Orb Charizard-Mega-X Fire Blast vs. 252 HP / 4 SpD Hippowdon: 242-286 (57.6 - 68%) -- guaranteed 2HKO after Leftovers recovery
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27 vs
252 Atk Charizard-Mega-X Flare Blitz vs. 0 HP / 4 Def Aegislash-Shield: 270-318 (103.4 - 121.8%) -- guaranteed OHKO
252+ Atk Choice Band Aegislash-Blade Iron Head vs. 0 HP / 0 Def Charizard-Mega-X: 147-174 (39.8 - 47.1%) -- guaranteed 3HKO
252+ Atk Choice Band Aegislash-Blade Close Combat vs. 0 HP / 0 Def Charizard-Mega-X: 294-347 (79.6 - 94%) -- guaranteed 2HKO
252+ Atk Choice Band Aegislash-Blade Shadow Sneak vs. 0 HP / 0 Def Charizard-Mega-X: 148-175 (40.1 - 47.4%) -- guaranteed 3HKO
252+ Atk Choice Band Aegislash-Blade Shadow Claw vs. 0 HP / 0 Def Charizard-Mega-X: 258-304 (69.9 - 82.3%) -- guaranteed 2HKO
27 doesn't wanna switch in to an close combat or shadow claw, but it wins.