Symbol of Heritage is a Equip 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, Symbol of Heritage is Unlimited.
YGOPRODeck lists Symbol of Heritage for these formats: Duel Links, Common Charity, Edison, TCG, OCG, Master Duel.
A listed print of Symbol of Heritage appears in Dark Revelation Volume 4 (DR04-EN163) at Common rarity.
Among markets shown on this page, the lowest listed snapshot for Symbol of Heritage is about $0.15 on TCGPlayer (prices change frequently).
