River Herald Guide LCI/209

Set: The Lost Caverns of Ixalan
Collector Code: LCI/209
Name: River Herald Guide
Type: Creature — Merfolk Scout
Oracle text: Vigilance When this creature enters, it explores. (Reveal the top card of your library. Put that card into your hand if it's a land. Otherwise, put a +1/+1 counter on this creature, then put the card back or put it into your graveyard.)
Rarity: Common