Intermediate #09 Grudge Match Summon Yata-Garasu. Activate Mystic Box, select Timeater, and select Yata-Garasu. Activate Sword of Deep-Seated and select Celtic Guardian. Activate Sword of Deep-Seated and select Celtic Guardian. Switch to Battle Phase. Attack Gradius with Celtic Guardian. Don't Activate a card when Celtic Guardian is attacking. Activate Book of Moon and select Celtic Guardian. Activate Corpse of Yata-Garasu and draw two cards. Attack Yata-Garasu with Muka Muka.