Snapcaster Mage [Ultimate Masters] Champions of Kamigawa the player can activate mana

the player can activate mana abilities only if they're from lands that player controls and only if mana they produce is spent to activate other mana abilities of lands the player controls and/or to play that card

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When Ulamog

{2}: Greater Morphling becomes the colors of your choice until end of turn

Snapcaster Mage [Ultimate Masters] Champions of Kamigawa the player can activate manaSet: Ultimate Masters Type: Creature Human Wizard Mythic Cost: {1}{U} Flash When Snapcaster Mage enters the battlefield, target instant or sorcery card in your graveyard gains flashback until end of turn. The flashback cost is equal to its mana cost. (You may cast that card from your graveyard for its flashback cost. Then exile it.)