Viper's Rebirth is a Normal 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, Viper's Rebirth is Unlimited.
YGOPRODeck lists Viper's Rebirth for these formats: Duel Links, Common Charity, Edison, TCG, OCG, Master Duel.
A listed print of Viper's Rebirth appears in Absolute Powerforce (ABPF-EN049) at Common rarity.
Among markets shown on this page, the lowest listed snapshot for Viper's Rebirth is about $0.05 on Cardmarket (prices change frequently).
