Groudon Star (111/113) [EX: Delta Species] Darkness[+10] your opponent cannot activate monster

your opponent cannot activate monster effects until the end of the Damage Step

Set: Black & White: Legendary Treasures Type: Fire Rarity: Uncommon Retreat cost: Colorless

it gains 400 ATK during the Damage Step only

Set: Mattel Action Figure Promos: Series 3 Card type: Fusion/Effect Monster Rarity: Parallel Rare Attack: 2100 Defense: 1200 "Elemental Hero Avian" + "Elemental Hero Burstinatrix" This monster cannot be Special Summoned except by Fusion Summon

or "Duoterion" in your GY

Groudon Star (111/113) [EX: Delta Species] Darkness[+10] your opponent cannot activate monsterSet: EX: Delta Species Type: Fighting Rarity: Ultra Rare Retreat cost: Colorless,Colorless,Colorless