The Lightray are a series of LIGHTmonsters that are to be introduced in Galactic Overlord. In opposition to the Dark Counterparts, they will exist as LIGHT versions of existing monsters.
They all seem to have the same color scheme of Blue and White, can only be Special Summoned by having a certain number of cards banished or in the graveyard, and focus on banishing LIGHT monsters and supporting LIGHT Attribute monsters.
Future Fusion: "Lightray Daedalus", "Lightray Diabolos" and "Lightray Gearfried" all need LIGHT monsters with different names in your Graveyard to be summoned. With "Future Fusion", you'll be able to quickly send the necessary monsters from your Deck to your Graveyard by selecting one of those Fusion Monsters: "Five-Headed Dragon" (LIGHT Dragons), "Chimeratech Overdragon" ("Cyber Dragon" + LIGHT Machines) or "Worm Zero" (LIGHT Reptiles).
Foolish Burial: to send one LIGHT monster to your Graveyard.
Light of Redemption: return one of your banished LIGHT monsters to your hand.
Chaos Zone: will gain many counters as you banish monsters to use the effects of Lightray monsters. Can also be used as a target to the effect of "Lightray Daedalus".