Morgana, the Fallen Child

Spells and abilities you control have lifelink
{b}{b}{t}: Target creature you control gains a
hexproof counter.
{b}{b}{t}: Tap target creature an opponent controls.
It doesn't untap during its controller's untap step
as long as this creature is on the battlefield.
{b}{b}{b}{t}: Deal damage equal to this creature's
power to each tapped creature your opponent's control.
"I am bound, but I will not break."