Bellatrix Lestrange

Magecraft - when you copy or cast an instant or sorcery spell put a -1/-1 counter on target creature.

Lieutenant - If you control your commander, then whenever you copy or cast an instant or sorcery spell put a -2/-2 counter on target creature instead.

{t}{b}{b/r}{r} Put a -3/-3 counter on target creature until the end of the turn.