🗿 notawikiAcross the Obelisk Codex · the answer, not the article

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aura  Auras (buffs)
Damage and healing +20% per charge, and enemies can't target you directly. Playing any card clears every charge; one charge also expires at turn start.
⚙ Exact mechanics, verified against the game’s own keyword data.
Cards that reference Stealth 17 cards