Gem-Knight Obsidian is a Rock Effect Monster with Attribute EARTH, Level 3, ATK 1500, DEF 1200.
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, Gem-Knight Obsidian is Unlimited.
YGOPRODeck lists Gem-Knight Obsidian for these formats: Duel Links, Common Charity, TCG, OCG, Master Duel.
Gem-Knight Obsidian belongs to the Gem- archetype—use that tag when searching for engine pieces and tech options.
A listed print of Gem-Knight Obsidian appears in Astral Pack Eight (AP08-EN020) at Common rarity.
Among markets shown on this page, the lowest listed snapshot for Gem-Knight Obsidian is about $0.73 on Cardmarket (prices change frequently).
