Toon Summoned Skull (MRL-073) [Magic Ruler]

This card cannot be summoned unless "Toon World" is on the field. This card cannot attack in the same turn that it is summoned. Pay 500 Life Points each time this monster attacks. When "Toon World" is destroyed, this card is also destroyed. If your opponent doesn't control a Toon monster on the field, this card may inflict Direct Damage to your opponent's Life Points. If a Toon monster is on your opponent's side of the field, your attacks must target the Toon monster.