"Dark Magician" + "Buster Blader" This monster cannot be Special Summoned except by Fusion Summon. As long as this card remains face-up on the field, you can discard 1 card from your hand to negate the activation of a Spell Card and destroy it. Increase the ATK of this card by 500 points for each Dragon-Type monster on the field and in either player's Graveyard.