What it does
Eerie is an ability word (introduced in Duskmourn: House of Horror) that triggers whenever an enchantment enters the battlefield under your control or a Room door is fully unlocked. So a single Room with two doors can trigger Eerie twice—once for each unlock—even though it's one permanent. Each Eerie ability checks for either event, giving enchantment-heavy decks frequent payoffs.
The common mistake: people think Eerie only cares about enchantments entering, forgetting that unlocking a Room door counts too, even when the Room is already on the battlefield. Since Rooms enter unlocking one door (that's one trigger), then unlocking the second door later gives another, Eerie effects can fire more than you'd expect.
In Commander, Eerie rewards enchantress-style builds and Room synergies, turning routine enchantment plays into card draw, tokens, or incremental value over a long game.
Iconic cards with Eerie
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