Réacteur d'invocation・FEU CRMS-FR012

The first time a (or more) monster(s) is (are) Summoned to your opponent's field each turn, inflict 800 damage to your opponent. During the Battle Phase of the turn this effect is activated, you can negate the attack of a monster your opponent controls. You can send 1 "Trap Reactor.Y FI", 1 "Spell Reactor.RE", and this card face-up you control to Special Summon 1 "Graydle Alligator" from your hand, Deck, or GY.