Klauth, Unrivaled Ancient{5}{R}{G}
Legendary Creature — Dragon
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.
4/4
Artista: Andrew Mar