Evil HERO Malicious Fiend (SGX3-ENA21) - Speed Duel GX: Duelists of Shadows 1st Edition

"Evil HERO Malicious Edge" + 1 Level 6 or higher Fiend monster
Must be Special Summoned with "Dark Fusion". During your opponent's Battle Phase, all monsters they control are changed to face-up Attack Position, and each monster they control must attack this card, if able.