252SpAtk Choice Specs Golurk (+SAtk) Ice Beam vs 248HP/8SpDef Eviolite Tangela (Neutral): 79% - 93% (264 - 312 HP). Guaranteed 2HKO.
252SpAtk Choice Specs Golurk (+SAtk) Thunderbolt vs 252HP/4SpDef Leftovers Alomomola (Neutral): 68% - 81% (368 - 434 HP). Guaranteed 2HKO.
252SpAtk Choice Specs Golurk (+SAtk) Grass Knot vs 200HP/56SpDef Leftovers Water Absorb Seismitoad (Neutral): 98% - 116% (396 - 468 HP). Guaranteed 2HKO. 93% chance to OHKO.
I am pretty amazed with that myself :O