Role
Scrafty, but faster, higher attack and lower physical defense. It trades in rest for ice punch for reliably dealing with its winged threats. Also serves as a bulky setup sweeper.
Set
Max HP (150 base from giratina) with max speed makes it reasonably bulky for a sweeper. Bulk up to boost attack and compensate for its low defense stat. Drain punch for recovery, knock off for psychic and ghost mons and to knock off items (obviously). The 4 in SpD are really just for show. The last moveslot is optional. Ice punch for Landorus, Garchomp, Nidoking, Serperior and Gliscor. Shadow sneak for faster psychic and ghost mons like Alakazam or outsneak Mimikyu. Will-o-Wisp is more of a surprise move to cripple physical attackers who think that they can switch in and finish off Gallade like Crobat, Mimikyu, Scizor-Mega and Zeraora. Or just to punish someone who is dumb enough to run normal Groudon instead of primal. Inner focus prevents Gallade from getting flinched by mons like Smeargle. You can run Swords dance + Close combat for a more offensive role.
Calcs (offensive)
0 Atk Gallade-Mega Drain Punch vs. 0 HP / 0 Def Tyranitar-Mega: 352-420 (103.2 - 123.1%) -- guaranteed OHKO
0 Atk Gallade-Mega Ice Punch vs. 4 HP / 0 Def Garchomp-Mega: 296-352 (82.6 - 98.3%) -- 31.3% chance to OHKO after Stealth Rock
+1 0 Atk Gallade-Mega Knock Off (97.5 BP) vs. 248 HP / 0 Def Marowak-Alola: 298-352 (92.2 - 108.9%) -- guaranteed OHKO after Stealth Rock
0 Atk Gallade-Mega Ice Punch vs. 252 HP / 0 Def Landorus-Therian: 364-432 (81.9 - 97.2%) -- 62.5% chance to OHKO after Stealth Rock (Inherited 120 HP)
+1 0 Atk Gallade-Mega Drain Punch vs. 32 HP / 124 Def Kyogre-Primal: 180-213 (51.5 - 61%) -- guaranteed 2HKO after Stealth Rock
+1 0 Atk Gallade-Mega Knock Off vs. 0 HP / 40 Def Mewtwo-Mega-Y: 276-326 (78.1 - 92.3%) -- 31.3% chance to OHKO after Stealth Rock
+1 0 Atk Gallade-Mega Drain Punch vs. 4 HP / 0 Def Necrozma-Dusk-Mane: 153-181 (45.5 - 53.8%) -- 94.9% chance to 2HKO after Stealth Rock
Calcs (defensive)
252 Atk Garchomp-Mega Earthquake vs. 252 HP / 0 Def Gallade-Mega: 210-247 (41.6 - 49%) -- guaranteed 3HKO
252 SpA Choice Specs Swellow Air Slash vs. 252 HP / 4 SpD Gallade-Mega: 368-434 (73 - 86.1%) -- guaranteed 2HKO (inherited 154 SpA)
252 SpA Life Orb Turboblaze Kyurem-White Draco Meteor vs. 252 HP / 4 SpD Gallade-Mega: 298-352 (59.1 - 69.8%) -- guaranteed 2HKO
252 Atk Necrozma-Dusk-Mane Searing Sunraze Smash vs. +1 252 HP / 0 Def Gallade-Mega: 262-309 (51.9 - 61.3%) -- guaranteed 2HKO
216 SpA Mewtwo-Mega-Y Psystrike vs. +1 252 HP / 0 Def Gallade-Mega: 153-180 (30.3 - 35.7%) -- 34% chance to 3HKO
252+ Atk Marowak-Alola Shadow Bone vs. +1 252 HP / 0 Def Gallade-Mega: 204-240 (40.4 - 47.6%) -- guaranteed 3HKO (120 Attack, thick club is knocked off)
