If you control no monsters and an Xyz Monster you control was destroyed this turn: Target 1 Xyz Monster in your Graveyard that was destroyed this turn and 1 other monster in your Graveyard whose ATK is less than or equal to the ATK of the destroyed monster; Special Summon those targets. Destroy them during the End Phase.
![Xyz Double Back [CBLZ-EN056] Common | Chromatic Games](http://chromaticgamestcg.com.au/cdn/shop/products/5efbe1bc-48ed-591c-9382-cc4fcac99cb7.png?v=1622255959)
