Klauth, Unrivaled Ancient – 50: Commander: Adventures in the Forgotten Realms

– Rarity: M
– Number: 50
– SubType: Legendary Creature — Dragon
– P: 4
– T: 4
– OracleText: 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.