Wall of Thorns 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, Wall of Thorns is Unlimited.
YGOPRODeck lists Wall of Thorns for these formats: Duel Links, Edison, TCG, OCG, Master Duel.
A listed print of Wall of Thorns appears in Astral Pack Three (AP03-EN013) at Super Rare rarity.
Among markets shown on this page, the lowest listed snapshot for Wall of Thorns is about $0.79 on Cardmarket (prices change frequently).
