An Xyz Summon (エクシ一ズ召喚, Ekushīzu Shōkan) can be conducted when there are two or more monsters of the same Level on the field. Those monsters can be used as Xyz Material Monsters to Summon an Xyz Monster whose Rank is the same as the Levels of the monsters used.

Xyz Material Monsters are stacked on top of each other in a Monster Card Zone, with the Xyz Monster being placed on top of the stack.

This type of Summon is featured in the Yu-Gi-Oh! ZEXALanime and manga series.