Gladiator Beast's Battle Archfiend Shield 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, Gladiator Beast's Battle Archfiend Shield is Unlimited.
YGOPRODeck lists Gladiator Beast's Battle Archfiend Shield for these formats: Duel Links, Common Charity, Edison, TCG, OCG, Master Duel.
Gladiator Beast's Battle Archfiend Shield belongs to the Gladiator Beast archetype—use that tag when searching for engine pieces and tech options.
A listed print of Gladiator Beast's Battle Archfiend Shield appears in Astral Pack Three (AP03-EN022) at Common rarity.
Among markets shown on this page, the lowest listed snapshot for Gladiator Beast's Battle Archfiend Shield is about $0.13 on Cardmarket (prices change frequently).
