Xyz Summon is a special summoning method in the Yu-Gi-Oh! trading card game. It allows players to combine two or more monsters of the same level to create a powerful Xyz Monster. This process involves placing the selected monsters underneath the Xyz Monster card, which then gains their combined abilities. To perform an Xyz Summon, players must have monsters on the field that share the same level. Once summoned, the Xyz Monster can be used for various strategies, including attacking opponents or activating unique effects. This mechanic adds depth and versatility to gameplay, enhancing the overall experience.