Avalanche, Ice-Sky King

+2: Target Dragon gains Indestructible until end of turn
-3: Search your library or graveyard for a Dragon creature card, put it into your hand. If that card is Emerald or Pyro, put it onto the battlefield
-10: Avalanche, Ice-Sky King becomes a 20/20 dragon creature with flying, vigilance, lifelink, indestructible, and double strike until end of turn