Dimension Wall 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, Dimension Wall is Unlimited.
YGOPRODeck lists Dimension Wall for these formats: Common Charity, Edison, TCG, OCG, Master Duel.
A listed print of Dimension Wall appears in Champion Pack: Game Six (CP06-EN020) at Common rarity.
Among markets shown on this page, the lowest listed snapshot for Dimension Wall is about $0.60 on Cardmarket (prices change frequently).
