Submarineroid [POTD-EN008] Ultimate Rare Legacy of Darkness The equipped monster loses 500

The equipped monster loses 500 ATK

or Effect Monster Card

There can only be 1 face-up "King of the Beasts" on the field

When this card is destroyed by your opponent's card and sent to the Graveyard: You can Special Summon 1 Spellcaster-Type monster from your hand or Deck whose Level is less than or equal to the number of "Spellbook" Spell Cards in your Graveyard

If your opponent doesn't control a Toon Monster

Submarineroid [POTD-EN008] Ultimate Rare Legacy of Darkness The equipped monster loses 500Set: Power of the Duelist Card type: Effect Monster Rarity: Ultimate Rare Attack: 800 Defense: 1800 This card can attack your opponent directly. When it does, any Battle Damage this card inflicts to your opponent becomes the original ATK of this card. You can change this card to Defense Position at the end of the Damage Step.