Flying Fortress SKY FIRE

This card cannot be Normal Summoned or Set. This card cannot be Special Summoned except with the effect of Summon Reactor – SK. Once per turn, you can send 1 card from your hand to the Graveyard to destroy 1 card your opponent controls. Once during each of your opponent's turns, you can activate 1 of the following effects: <br>• When your opponent Normal Summons or Special Summons a monster, destroy it and inflict 800 damage to your opponent. <br>• When your opponent Sets a card, destroy it and inflict 800 damage to your opponent.