Melffy Mommy (OP15-EN011) - OTS Tournament Pack 15 Unlimited

2+ Level 2 Beast monsters
Once per turn (Quick Effect): You can attach 1 Beast monster from your hand or face-up field to this card as material. This card gains effects based on the number of materials attached to it.
• 3+: Cannot be destroyed by battle.
• 4+: You take no damage from battles involving this card.
• 5+: When an attack is declared involving this card and an Attack Position monster: You can inflict damage to your opponent equal to that Attack Position monster's ATK.