Dark. Fiend/Effect. 1. Cannot be destroyed by battle. At the end of the Damage Step, if this card battled an opponent's monster: You can place this card face-up in your Spell & Trap Zone as a Continuous Spell Card, and if you do, place 1 Cubic Counter on that opponent's monster. (Monsters with a Cubic Counter cannot attack, also negate their effects.) If this card is treated as a Continuous Spell Card by this effect, during your Main Phase: You can Special Summon this card from your Spell & Trap Zone.