Error's Machinations

Whenever an opponent takes 3 or more damage
from a single source, that player discards a card.
{t},{b}{r}: Deal 3 damage to target player. You may
only activate this if a player lost life this turn.
"Flesh is imperfection, Error rids you of your imperfection. So please try not to scream." - Ortesa,
Error's Assimilator.