Use this card's effect to destroy "The Wicked Eraser" in your hand to have the clear field effect.
Use this card's effect to destroy "Light and Darkness Dragon" in your hand to have the destruction effect on all cards you control on the field and the special summon from the graveyard effect.
Use "Earthbound Immortal Ccarayhua" and combo it with Fire King Avatar Yaksha's effect. Whenever "Yaksha" is destroyed and sent to the Graveyard, you can destroy 1 card you control or in your hand. Destroy the "Earthbound Immortal Ccarayhua" which you should keep in your hand only for "Yaksha's" effect, then you'll trigger "Ccarayhua's" effect to destroy all cards on the field. This combo is powerful enough to stop a OTK such as Six Samurai, Chaos Dragon, etc.