Inverse Universe is a Normal Trap Card.
Trap Cards are normally Set first and can be activated on a later turn, often in response to an action.
On the current TCG and OCG Forbidden & Limited lists tracked here, Inverse Universe is Unlimited.
YGOPRODeck lists Inverse Universe for these formats: Duel Links, Common Charity, Edison, Speed Duel, TCG, OCG, Master Duel.
A listed print of Inverse Universe appears in Absolute Powerforce (ABPF-EN080) at Short Print rarity.
Among markets shown on this page, the lowest listed snapshot for Inverse Universe is about $0.11 on TCGPlayer (prices change frequently).
