Azrael, Master of Angels

Double Strike
Inner Circle 2: When Azrael, Master of Angels
enters the battlefield, exile two cards face down.
You may play these cards for X, where X is their converted mana cost.
{2}{w}: Search your library for Dark Angels
Creature with a converted mana cost of {3} or less.
Put it in your hand and shuffle your library.
All Dark Angel creature cards get +2/+1 and
haste until end of turn