The ability to make people's pores emit highly toxic, acidic sweat in the form of pure, liquid fail, which would then eat away at their skin at an astonishing rate (for the profound amusement of unsuspecting onlookers), causing them to, in their final seconds, find themselves screaming through uncontrollable spasms of excruciating agony, "Sweet fuckmongering brother of Jesus! Somebody's highly unorthodox superpower has turned my sweat into corrosive, liquiscent fail that is currently disintegrating my poor, delicate skin at an enigmatically high pace! This is not fun!"
Or... the ability to exit to the character creation screen of life and create a new character...
... with wings.