Granmarg the Rock Monarch [FET-EN009] Ultimate Rare Wing Raiders Your opponent cannot Special Summon

Your opponent cannot Special Summon monsters

and this card will be treated as an Equip Spell Card that decreases the ATK of the equipped monster by 500 points

After damage calculation

Set: Duel Terminal 5 Card type: Quick Play Spell Rarity: Common Attack: 0 Defense: 0 Activate only by paying 1500 Life Points when your opponent activates a Spell/Trap card or Effect Monster's effect that would destroy a monster(s) on the field

Granmarg the Rock Monarch [FET-EN009] Ultimate Rare Wing Raiders Your opponent cannot Special SummonSet: Flaming Eternity Card type: Effect Monster Rarity: Ultimate Rare Attack: 2400 Defense: 1000 When this card is Tribute Summoned successfully, destroy 1 face down card on the field.