Klauth, Unrivaled Ancient [LIST - 050/062]

Rarity: M #: 050/062 Creature Type or Sub Type: Legendary Creature — Dragon P: 4 T: 4 Rules Text Contains: Flying, haste Whenever Klauth, Unrivaled Ancient attacks, add X mana in any combination of colors, where X is the total power of attacking creatures. Spend this mana only to cast spells. Until end of turn, you don't lose this mana as steps and phases end.