Armed Dragon LV7 (LED2-EN027) [Legendary Duelists: Ancient Millennium]

Cannot be Normal Summoned/Set. Must be Special Summoned by "Armed Dragon LV5", and cannot be Special Summoned by other ways. You can send 1 monster from your hand to the Graveyard; destroy all face-up monsters your opponent controls with ATK less than or equal to the sent monster's ATK.