Valefor, Dragon of Fate

+1: Target creature takes 1 damage and gains lifelink until end of turn.
-3: Search your library for a card named Snow Queen or Ember King, reveal it, and place it into your hand. Shuffle your library.
-6: Create a 6/6 dragon token with flying and lifelink named Valefor. If Snow Queen and Ember King are in play Valefor gains indestructible.