Number 27: Dreadnought Dreadnoid [BLRR-EN030] Secret Rare

2+ Level 4 monsters At the end of the battle phase, if this card destroys an opponent's monster by battle. You can Special Summon from your Extra Deck, 1 Rank 10 or higher Machine Xyz Monster by using this face-up card you control as material. (This is treated as an Xyz Summon. Transfer this card's materials to the Summoned monster.) You can only use this effect of "Number 27: Dreadnought Dreadnoid" once per turn. If this face-up card on the field would be destroyed by battle or card effect, you can detach 1 material from this card instead.