Avacyn, Raised Again

When this creature enters the battlefield, you gain life equal to the number of creatures opponents control. For each creature with power 6 or more, you gain 2 life instead. Goldblade (Indestructible has no protection against this spell).
Flying, Vigilance, First Strike. When Avacyn attacks, create 2 5/5 Angel Warriors with First Strike, Vigilance, Flying that are attacking.