Overlay Network

An Overlay Network (オーバーレイ・ネットワーク Ōbārei Nettowāku) is a portal who appears when a Duelist performs an Xyz Summon, the Xyz Material monsters transform into streaks of energy, and the Overlay Network appears in the form of a portal that the energy streaks enter. The portal then explodes, and the newly Summoned Xyz Monster unveils itself. In Yu-Gi-Oh! ARC-V, instead of exploding, a column of blue lightning emerges from the center of the portal.