When Merfolk Tunnel-Guide enters, you get a three-time boon with "Whenever one or more Merfolk enter under your control, target Merfolk creature you control explores."
Digital-only printing
No paper market price
Merfolk Tunnel-Guide from Alchemy: Ixalan is a digital-only printing (MTG Arena or Magic Online). This printing has no physical card, so TCGplayer and Cardmarket paper prices do not apply.
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