My Body as a Shield is a Quick-Play 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, My Body as a Shield is Unlimited.
YGOPRODeck lists My Body as a Shield for these formats: GOAT, OCG GOAT, Duel Links, Common Charity, Edison, TCG, OCG, Master Duel.
A listed print of My Body as a Shield appears in Champion Pack: Game One (CP01-EN015) at Common rarity.
Among markets shown on this page, the lowest listed snapshot for My Body as a Shield is about $1.45 on Cardmarket (prices change frequently).
