: Search your library for a Mountain or Plains card and put it onto the battlefield tapped. Shuffle your library, then put Horizon of the Burnwillows on top of it.
, : Horizon of the Burnwillows deals 1 damage to target attacking creature.
: Search your library for a Mountain or Plains card and put it onto the battlefield tapped. Shuffle your library, then put Horizon of the Burnwillows on top of it.
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