Cockatrice [Beta Edition] Scars of Mirrodin The activation of your cards

The activation of your cards and effects that include an effect that Fusion Summons a Fusion Monster cannot be negated

When an Xyz Material(s) is detach from this card: This card gains 800 ATK

Set: Sun & Moon: Team Up Type: Grass Rarity: Ultra Rare Retreat cost: Colorless

Set: Beta Edition Type: Enchantment — Aura Rarity: Uncommon Cost: {3}{U} Enchant artifact

Set: EX: Delta Species Type: Water Rarity: Uncommon Retreat cost: Colorless

Cockatrice [Beta Edition] Scars of Mirrodin The activation of your cardsSet: Beta Edition Type: Creature Cockatrice Rarity: Rare Cost: {3}{G}{G} Flying Whenever Cockatrice blocks or becomes blocked by a non Wall creature, destroy that creature at end of combat.