Psi-Impulse 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, Psi-Impulse is Unlimited.
YGOPRODeck lists Psi-Impulse for these formats: Duel Links, Common Charity, Edison, TCG, OCG, Master Duel.
A listed print of Psi-Impulse appears in The Duelist Genesis (TDGS-EN052) at Common rarity.
Among markets shown on this page, the lowest listed snapshot for Psi-Impulse is about $0.11 on Cardmarket (prices change frequently).
