Armed Dragon LV7 (DR3-EN015) - Dark Revelation Volume 3 Unlimited

This card cannot be Normal Summoned or Set. This card cannot be Special Summoned except by the effect of "Armed Dragon LV5". By sending 1 Monster Card from your hand to the Graveyard, destroy all face-up monsters on your opponent's side of the field with an ATK equal to or less than the ATK of the sent monster.