Shield & Sword 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, Shield & Sword is Unlimited.
YGOPRODeck lists Shield & Sword for these formats: GOAT, OCG GOAT, Speed Duel, Duel Links, Common Charity, Edison, TCG, OCG, Master Duel.
A listed print of Shield & Sword appears in Battle Pack 2: War of the Giants (BP02-EN130) at Common rarity.
Among markets shown on this page, the lowest listed snapshot for Shield & Sword is about $0.03 on Cardmarket (prices change frequently).
