Alae, Huntress Of Innistrad

Vigilance
Heart Of Innistrad- Whenever a creature you control attacks, it gets a darkness counter.
{5}{b}{b}{r},{t}: Target creature you control with
five or more darkness counters on it gets +6/+6, Lifelink, and Double Strike until end of turn.
"This is my domain, and I am willing to die for it."