Mountain

This spell costs 1 less to cast for each creature card in your graveyard. Once during each of your turns, you may cast a creature spell from your graveyard.

(T: Add W.)

Sacrifice a creature: Draw cards equal to the sacrificed creature's power, then discard three cards.

(T: Add U.)

Whenever you cast an instant or sorcery spell, you may pay UR. If you do, copy that spell. You may choose new targets for the copy. Whenever another nontoken creature you control enters, you may pay GU. If you do, create a token that's a copy of that creature.

(T: Add B.)

You may pay 1 life and exile a blue card from your hand rather than pay this spell's mana cost. Counter target spell.

1WU, T: Return target artifact or enchantment card from your graveyard to your hand.