Lost Guardian is a Rock Effect Monster with Attribute EARTH, Level 4, ATK 100, DEF -1.
Monster cards contest the field through Summons, battles, and effects—check Level/Rank/Link and Attribute for Extra Deck or searchers.
On the current TCG and OCG Forbidden & Limited lists tracked here, Lost Guardian is Unlimited.
YGOPRODeck lists Lost Guardian for these formats: GOAT, OCG GOAT, Duel Links, Common Charity, Edison, TCG, OCG, Master Duel.
Lost Guardian belongs to the Guardian archetype—use that tag when searching for engine pieces and tech options.
A listed print of Lost Guardian appears in Dark Revelation Volume 3 (DR3-EN191) at Common rarity.
Among markets shown on this page, the lowest listed snapshot for Lost Guardian is about $0.11 on Cardmarket (prices change frequently).
