Time Engine

(This card is always treated as a "Metalmorph" card.)If a monster(s) you control is destroyed by battle or an opponent's card effect: Target 1 of those monsters; Special Summon it, then if you Special Summoned a Level 5 or higher Machine monster by this effect and have a "Metalmorph" Trap on your field or GY, except this card on the field, you can apply this effect.• Destroy as many monsters your opponent controls as possible, then you can inflict damage to your opponent, equal to that Special Summoned monster's original ATK.