Spend 10 and choose an opponent: That opponent's damage prevention Powers have no effect this round.
Stephanie
Guards!
Use once per game: Deal 15 unblockable damage to an opponent, if they were Attacking someone this turn. (If they weren't, you lose your Guards anyway.)
Kevan
Scythe
Spend X Energy. All opponents Defense is reduced by X.
Nev the Deranged
Cherenkov Punch
If you deal more than 20 damage to a Hero during a round, they lose their alphabetically earliest Power at the end of the round.