Spider Egg 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, Spider Egg is Unlimited.
YGOPRODeck lists Spider Egg for these formats: Speed Duel, Duel Links, Common Charity, Edison, TCG, OCG, Master Duel.
A listed print of Spider Egg appears in Speed Duel Starter Decks: Ultimate Predators (SS03-ENB26) at Common rarity.
Among markets shown on this page, the lowest listed snapshot for Spider Egg is about $0.08 on Cardmarket (prices change frequently).
