>>33726514I guess this is correct, but it's also a boring answer.
>>33726552This is wrong in many, many ways
252+ SpA Deoxys-Attack Helping Hand Psycho Boost vs. 0 HP / 0- SpD Pheromosa in Psychic Terrain: 85020-100026 (708500 - 833550%) -- guaranteed OHKO
And this isn't the most damage a Deoxys can do, but it was just a quick way for it to do more than your situation:
252+ SpA Deoxys-Attack Helping Hand Psycho Boost vs. 0 HP / 0- SpD Croagunk in Psychic Terrain: 170040-200052 (1417000 - 1667100%) -- guaranteed OHKO
>>33726576>>33726580Ding Ding Ding!
Shuckle holding a metronome, against Noibat in a triple battle in gen 6.
For full details, look here:
https://www.gamefaqs.com/boards/696959-pokemon-x/67632721?page=1I will outline that it does use Forest's Curse (on a Noibat), Protean and Pure Power, Power Trick, Defense Curl into Ice Ball (which it can use via Mimic) and two Flower Gift Partners under sun in a triple battle, and so only works for gen 6.
