>>16257296252 SpA Gengar Shadow Ball vs. 252 HP / 128 SpD Sableye: 82-97 (52.2 - 61.7%)
I can either will-o-wisp you, foul play you for anywhere between 50-100+% damage depending on EVs, then either recover the next turn assuming I will-o-wisp for maximum stallage or try foul play again and hope the RNG gods are with me. Try again.