Enneacraft - Archa.TAIL

After this card was flipped face-up, while it is in the Monster Zone, each time a monster(s) is sent to your opponent's GY, they take 900 damage. When your opponent activates a card or effect that would destroy a card(s) on the field (Quick Effect): You can change this face-down card to face-up Defense Position; monsters and "Enneacraft" Spells you control cannot be destroyed by card effects for the rest of this turn. You can reveal this card in your hand; Special Summon 1 monster from your hand in face-down Defense Position. You cannot Special Summon the turn you activate this effect, except in face-down Defense Position.