Vylon Stella (Mosaic Rare) (BP02-EN107) - Battle Pack 2: War of the Giants Unlimited

If this card is sent from the Monster Card Zone to the Graveyard: You can pay 500 Life Points, then target 1 face-up monster you control; equip this card to that target. At the end of the Damage Step, if the equipped monster battled an opponent's monster: Destroy that opponent's monster.