Bond Between Teacher and Student 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, Bond Between Teacher and Student is Unlimited.
YGOPRODeck lists Bond Between Teacher and Student for these formats: TCG, OCG, Master Duel.
Bond Between Teacher and Student belongs to the Dark Magician archetype—use that tag when searching for engine pieces and tech options.
A listed print of Bond Between Teacher and Student appears in Battles of Legend: Glorious Gallery (BLGG-EN109) at Secret Rare rarity.
Among markets shown on this page, the lowest listed snapshot for Bond Between Teacher and Student is about $0.49 on Cardmarket (prices change frequently).
