Ballista of Rampart Smashing is a Equip 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, Ballista of Rampart Smashing is Unlimited.
YGOPRODeck lists Ballista of Rampart Smashing for these formats: GOAT, OCG GOAT, Duel Links, Common Charity, Edison, TCG, OCG, Master Duel.
A listed print of Ballista of Rampart Smashing appears in Dark Revelation Volume 3 (DR3-EN106) at Common rarity.
Among markets shown on this page, the lowest listed snapshot for Ballista of Rampart Smashing is about $0.10 on Cardmarket (prices change frequently).
