Photon Generator Unit is a Quick-Play Spell Card.
Spell Cards are usually activated from the hand on your turn unless their type gives another timing window.
On the current TCG and OCG Forbidden & Limited lists tracked here, Photon Generator Unit is Unlimited.
YGOPRODeck lists Photon Generator Unit for these formats: Duel Links, Common Charity, Edison, TCG, OCG, Master Duel.
Photon Generator Unit belongs to the Cyber Dragon archetype—use that tag when searching for engine pieces and tech options.
A listed print of Photon Generator Unit appears in Dark Revelation Volume 4 (DR04-EN165) at Common rarity.
Among markets shown on this page, the lowest listed snapshot for Photon Generator Unit is about $0.11 on Cardmarket (prices change frequently).
