Noble Arms of Destiny (NKRT-EN022)

You can only control 1 "Noble Arms of Destiny". Equip only to a Warrior-Type monster. Once per turn, the equipped monster cannot be destroyed by battle or by card effects. If this face-up card on the field is destroyed and sent to the Graveyard: You can target 1 Warrior-Type "Noble Knight" monster you control; equip this card to that target. You can only use this effect of "Noble Arms of Destiny" once per turn.

spell / Equip, Noble Knights of the Round Table Box Set