Fighting Dirty 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, Fighting Dirty is Unlimited.
YGOPRODeck lists Fighting Dirty for these formats: Common Charity, TCG, OCG, Master Duel.
A listed print of Fighting Dirty appears in Rising Rampage (RIRA-EN080) at Common rarity.
Among markets shown on this page, the lowest listed snapshot for Fighting Dirty is about $0.05 on Cardmarket (prices change frequently).
