Sarkhan child of Time

+2: Draw a card, if you have a card of that colour in your hand draw another card, if not deal 2 damage to target creature.
0: Sarkhan Time child is a 2/5 or a 5/2 white and blue dragon with indestructible and flying until your next turn. Prevent all damage dealt to him.
+8: Return all cards in your graveyard to your hand. You have no maximum hand size for the rest of the game. Spells you cast cost 4 less to cast.