Overdoom Line is a Continuous 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, Overdoom Line is Unlimited.
YGOPRODeck lists Overdoom Line for these formats: Duel Links, Common Charity, Edison, TCG, OCG, Master Duel.
A listed print of Overdoom Line appears in Legendary Collection 5D's Mega Pack (LC5D-EN106) at Common rarity.
Among markets shown on this page, the lowest listed snapshot for Overdoom Line is about $0.11 on Cardmarket (prices change frequently).
