Diancie @ Diancite
Ability: Clear Body
EVs: 80 HP / 108 Def / 68 Spe
Bold Nature
IVs: 0 Atk
- Power Gem
- Skill Swap
- Earth Power
- Moonblast
*
(252 ev's to spare lol)
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Magneton @ Electrium Z
Ability: Sturdy
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Flash Cannon
- Thunder
- Metal Sound
- Electroweb
0 SpA Diancie-Mega Earth Power vs. 0 HP / 4 SpD Magneton: 520-616 (215.7 - 255.6%) -- guaranteed OHKO
0 SpA Diancie Earth Power vs. 0 HP / 4 SpD Magneton: 344-408 (142.7 - 169.2%) -- guaranteed OHKO
*
Turn 1: Mega evolve into Mega Diancie & Skill Swap (grabbing Magneton's Sturdy). Diancie-M tanks the Flash Cannon or the Z-Thunder, (bounces the Metal Sound).
If Magneton predicts the Mega, it should Electroweb. Diancie can't live a Flash Cannon and skill swapping would just give it a broken sturdy.
*
Turn 1: Magneton uses Electroweb. Diancie stays in its base form and does not get its speed lowered because of Clear Body. Diancie uses Earth Power.
Turn 2: Diancie Mega Evolves, uses Earth Power.
*
Chance of victory: 50% to guess the Mega, 95% electroweb to land. Crits don't matter here. Diancie wins 52.5% of the time.
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Altaria-Mega @ Altarianite
Ability: Pixilate
EVs: 252 HP / 48 SpD / 208 Spe
Jolly Nature
- Dragon Dance
- Giga Impact
- Earthquake
- Cotton Guard
0 Atk Altaria-Mega Earthquake vs. 80 HP / 108+ Def Diancie: 92-110 (35.2 - 42.1%) -- guaranteed 3HKO
0 Atk Pixilate Altaria-Mega Giga Impact vs. 80 HP / 108+ Def Diancie: 126-148 (48.2 - 56.7%) -- 90.6% chance to 2HKO
*
+1 0 Atk Altaria-Mega Earthquake vs. 80 HP / 108+ Def Diancie: 138-164 (52.8 - 62.8%) -- guaranteed 2HKO
+1 0 Atk Pixilate Altaria-Mega Giga Impact vs. 80 HP / 108+ Def Diancie: 186-220 (71.2 - 84.2%) -- guaranteed 2HKO
*
0 SpA Diancie Moonblast vs. 252 HP / 48 SpD Altaria-Mega: 186-222 (52.5 - 62.7%) -- guaranteed 2HKO
0 SpA Diancie-Mega Moonblast vs. 252 HP / 48 SpD Altaria-Mega: 284-336 (80.2 - 94.9%) -- guaranteed 2HKO
*
Turn 1: Altaria Mega Evolves and Earthquakes. Diancie does not Mega evolve, and Moonblasts.
Turn 2: Diancie Mega Evolves and Moonblasts.
*
Turn 1: Altaria Mega Evolves and Dragon Dances. Diancie uses MB.
Turn 2: Altaria uses Giga Impact. Diancie lives and MB's again.
*
Crits accounted for:
*
+1 0 Atk Altaria-Mega Earthquake vs. 80 HP / 108+ Def Diancie on a critical hit: 208-246 (79.6 - 94.2%) -- guaranteed 2HKO
(Failed to KO diancie before second Moonblast)
*
+1 0 Atk Pixilate Altaria-Mega Giga Impact vs. 80 HP / 108+ Def Diancie on a critical hit: 280-330 (107.2 - 126.4%) -- guaranteed OHKO
(90% accuracy and 1/24 for a crit = 3.75%)
*
0 Atk Altaria-Mega Earthquake vs. 80 HP / 108+ Def Diancie on a critical hit: 138-164 (52.8 - 62.8%) -- guaranteed 2HKO
(Diancie lives will go about its blasting)
*
0 Atk Pixilate Altaria-Mega Giga Impact vs. 80 HP / 108+ Def Diancie on a critical hit: 187-222 (71.6 - 85%) -- guaranteed 2HKO
(Diancie lives and KO's Altaria while its recharging)
*
Chance of victory: 96.25%
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Charizard-Mega-Y @ Charizardite Y
Ability: Drought
EVs: 252 HP / 240 Def / 16 Spe
Bold Nature
- Air Slash
- Blast Burn
- Solar Beam
- Flame Charge
0 SpA Diancie-Mega Power Gem vs. 252 HP / 0 SpD Charizard-Mega-Y: 460-544 (127.7 - 151.1%) -- guaranteed OHKO
Turn 1: Diancie Mega Evolves and Power Gems
*
Chance of Victory 100%
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