Dragon Shrine of Carlos

If Dragon Shrine of Carlos is in your opening
hand, you may exile it face down. You may turn
it face up and cast it at anytime for {3} less mana.
Dragon creatures you control get +3/+3.
Pay {6}: Target dragon creature you control gains
indestructible until end of turn.
Just when you thought the shrine had no power,
Carlos gave all of his kin a nod as the statue cracked.