Gergonne's End (FLOD-EN069) - Flames of Destruction Unlimited

Target 1 "Tindangle" Link Monster you control; equip it with this card. It cannot be destroyed by battle or card effects, also your opponent cannot target it with card effects. Once per turn, if there is a monster in every zone the equipped monster points to: You can destroy this card and as many of those monsters as possible, then if all of them were destroyed, inflict damage to your opponent equal to the ATK of the monster that was equipped with this card.