Temple of the Mind's Eye is a Field 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, Temple of the Mind's Eye is Unlimited.
YGOPRODeck lists Temple of the Mind's Eye for these formats: Duel Links, Common Charity, TCG, OCG, Master Duel.
A listed print of Temple of the Mind's Eye appears in 2018 Mega-Tin Mega Pack (MP18-EN144) at Common rarity.
Among markets shown on this page, the lowest listed snapshot for Temple of the Mind's Eye is about $0.03 on Cardmarket (prices change frequently).
