Yubel - The Ultimate Nightmare - (1st Edition) (Quarter Century Secret Rare) - Quarter Century Bonanza - RA03-EN191

This card is a DARK Fiend Effect Monster that can only be Special Summoned by a specific spell. It cannot be destroyed by battle and deals damage to the opponent based on their monster's ATK when battled.

• At the end of the Damage Step, if this face-up Attack Position card battled an opponent's monster: Inflict damage to your opponent equal to that opponent's monster's ATK, also destroy that monster.