Evil HERO Infernal Sniper

[ Fiend / Fusion / Effect ] "Elemental HERO Clayman" + "Elemental HERO Burstinatrix" Must be Special Summoned with "Dark Fusion" and cannot be Special Summoned by other ways. This card cannot be destroyed by Spell Cards. During each of your Standby Phases: Inflict 1000 damage to your opponent. This card must be in face-up Defense Position to activate and to resolve this effect. ATK/ 2000 DEF/ 2500