Balance of Judgment 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, Balance of Judgment is Unlimited.
YGOPRODeck lists Balance of Judgment for these formats: Common Charity, TCG, OCG, Master Duel.
A listed print of Balance of Judgment appears in 2016 Mega-Tin Mega Pack (MP16-EN094) at Common rarity.
Among markets shown on this page, the lowest listed snapshot for Balance of Judgment is about $0.24 on Cardmarket (prices change frequently).
