Klauth, Unrivaled Ancient
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

Illustrated By Andrew Mar