Dimensionhole is a Normal 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, Dimensionhole is Unlimited.
YGOPRODeck lists Dimensionhole for these formats: GOAT, OCG GOAT, Duel Links, Common Charity, Edison, TCG, OCG, Master Duel.
Dimensionhole belongs to the Hole archetype—use that tag when searching for engine pieces and tech options.
A listed print of Dimensionhole appears in Dark Beginning 1 (DB1-EN183) at Common rarity.
Among markets shown on this page, the lowest listed snapshot for Dimensionhole is about $0.11 on Cardmarket (prices change frequently).
