g3 (i think) high impulse vs boudouche

Turn 3:
252 Atk Tough Claws Mega Metagross Meteor Mash vs. 0 HP / 0 Def Serperior: 222-262 (76.2 - 90%) -- guaranteed 2HKO
252 Atk Tough Claws Mega Metagross Meteor Mash vs. 0 HP / 4 Def Mega Charizard X: 97-114 (32.6 - 38.3%) -- 98.8% chance to 3HKO

Turn 4:
0 Atk Tough Claws Mega Charizard X Dragon Claw vs. 0 HP / 4 Def Metagross: 57-67 (18.9 - 22.2%) -- possible 5HKO
252 Atk Metagross Earthquake vs. 0 HP / 0 Def Mega Charizard X: 206-244 (69.3 - 82.1%) -- guaranteed 2HKO

Turn 5:
0 Atk Tough Claws Mega Charizard X Dragon Claw vs. 252 HP / 0 Def Garchomp: 300-354 (71.4 - 84.2%) -- guaranteed 2HKO

Turn 6:
252 SpA Miracle Seed Serperior Leaf Storm vs. 252 HP / 76 SpD Garchomp: 186-220 (44.2 - 52.3%) -- guaranteed 4HKO
252 SpA Miracle Seed Serperior Leaf Storm vs. 0 HP / 0 SpD Landorus-T: 213-252 (66.7 - 78.9%) -- guaranteed 2HKO

Turn 7:
252 Atk Landorus-T U-turn vs. 0 HP / 0 Def Serperior: 174-206 (59.7 - 70.7%) -- guaranteed 2HKO
252 Atk Landorus-T U-turn vs. 0 HP / 0 Def Terrakion: 45-53 (13.9 - 16.4%) -- possible 7HKO

Turn 8:
252 Atk Terrakion Close Combat vs. 0 HP / 4 Def Breloom: 234-276 (89.6 - 105.7%) -- 37.5% chance to OHKO
252 Atk Terrakion Close Combat vs. 252 HP / 0 Def Garchomp: 204-241 (48.5 - 57.3%) -- 94.5% chance to 2HKO

Turn 9:
252 Atk Life Orb Technician Breloom Bullet Seed (3 hits) vs. -1 0 HP / 0 Def Terrakion: 780-921 (241.4 - 285.1%) -- guaranteed OHKO

Turn 10:
252 SpA Life Orb Starmie Hydro Pump vs. 0 HP / 0 SpD Breloom: 148-174 (56.7 - 66.6%) -- guaranteed 2HKO
252 SpA Life Orb Starmie Hydro Pump vs. 4 HP / 0 SpD Crawdaunt: 157-186 (58.5 - 69.4%) -- guaranteed 2HKO

Turn 11:
252 Atk Life Orb Adaptability Crawdaunt Knock Off (97.5 BP) vs. 4 HP / 0 Def Starmie: 598-707 (228.2 - 269.8%) -- guaranteed OHKO
252 Atk Life Orb Adaptability Crawdaunt Knock Off (97.5 BP) vs. 0 HP / 4 Def Bisharp: 130-153 (47.9 - 56.4%) -- 86.7% chance to 2HKO
252 Atk Life Orb Adaptability Crawdaunt Knock Off (97.5 BP) vs. 0 HP / 4 Def Bisharp on a critical hit: 195-230 (71.9 - 84.8%) -- guaranteed 2HKO

Turn 12:
252 Atk Bisharp Iron Head vs. 4 HP / 0 Def Crawdaunt: 72-86 (26.8 - 32%) -- guaranteed 4HKO
252 Atk Life Orb Adaptability Crawdaunt Knock Off (97.5 BP) vs. 0 HP / 4 Def Bisharp: 130-153 (47.9 - 56.4%) -- 86.7% chance to 2HKO

Turn 13:
252 SpA Miracle Seed Serperior Leaf Storm vs. 4 HP / 0 SpD Crawdaunt: 572-674 (213.4 - 251.4%) -- guaranteed OHKO
252 Atk Life Orb Adaptability Crawdaunt Knock Off (97.5 BP) vs. 0 HP / 4 Def Serperior: 270-320 (92.7 - 109.9%) -- 56.3% chance to OHKO

Turn 14:
252 Atk Life Orb Adaptability Crawdaunt Aqua Jet vs. 0 HP / 4 Def Serperior: 57-68 (19.5 - 23.3%) -- possible 5HKO
252 Atk Life Orb Adaptability Crawdaunt Aqua Jet vs. 4 HP / 0 Def Starmie: 62-74 (23.6 - 28.2%) -- 93.5% chance to 4HKO

Turn 15:
252 SpA Life Orb Starmie Hydro Pump vs. 4 HP / 0 SpD Crawdaunt: 157-186 (58.5 - 69.4%) -- guaranteed 2HKO

Turn 16:
252 Atk Landorus-T U-turn vs. 4 HP / 0 Def Starmie: 192-226 (73.2 - 86.2%) -- guaranteed 2HKO
-1 252 Atk Landorus-T U-turn vs. 0 HP / 24 Def Landorus-T: 29-35 (9 - 10.9%) -- possibly the worst move ever

Turn 17:
-1 252 Atk Life Orb Technician Breloom Bullet Seed (3 hits) vs. 0 HP / 24 Def Landorus-T: 168-204 (52.6 - 63.9%) -- guaranteed 2HKO
252 Atk Life Orb Technician Breloom Bullet Seed (3 hits) vs. 4 HP / 0 Def Starmie: 546-654 (208.3 - 249.6%) -- guaranteed OHKO