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River Herald Scout

First printed in The Lost Caverns of Ixalan (2023)

River Herald Scout

Creature — Merfolk Scout

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.)

"Don't worry, little swimmers. I'm here for the ruins, not you."

1/2

Illustrated by
Josu Hernaiz

Legality

Rulings (6)

  • If a resolving spell or ability instructs a specific creature to explore but that creature has left the battlefield, the creature still explores. If you reveal a nonland card this way, you won't put a +1/+1 counter on anything, but you may put the revealed card into your graveyard. Effects that trigger "whenever a creature explores" trigger as appropriate.
  • If no card is revealed, most likely because that player's library is empty, the exploring creature receives a +1/+1 counter.
  • In some unusual cases, noncreature permanents may explore. For example, if the creature card returned by Defossilize is somehow not a creature once it's on the battlefield, it can still explore. You'll take all the same actions, and you may end up putting a +1/+1 counter on the permanent. (Note that some effects target a creature, and those effects would still require a legal target to have it explore.)
  • Some spells or abilities might cause a creature to explore multiple times in a row. If you reveal a nonland card when a creature explores and leave it on top of your library, then the creature explores again immediately afterwards, you'll reveal the same card again.
  • If an ability instructs a creature to explore, its controller reveals the top card of their library. If it's a land card, they'll put it into their hand. Otherwise, they'll put a +1/+1 counter on that creature, then choose to either leave that card on top of their library or put it into their graveyard.
  • Once an ability that causes a creature to explore begins to resolve, no player may take any other actions until it's done. Notably, opponents can't try to remove the exploring creature after you reveal a nonland card but before it receives a counter.

Prices

MTGO price: 0.002 TIX, the cheapest non-foil print (average sell price on GoatBots, 1 Nov 2026).

In Limited on MTG Arena

Win rates in Arena drafts and sealed, retrieved from 17Lands (CC BY 4.0).

Win rates of River Herald Scout in Limited
Set GIH WR vs set IWD Games
The Lost Caverns of Ixalan (LCI), Premier Draft 54.9% -0.5 -0.1 69454
The Lost Caverns of Ixalan (LCI), Sealed 57.2% +1.6 +2.5 3344
GIH WR
win rate of the games in which the card was in the opening hand or drawn
vs set
points above or below the average win rate of all decks in the set
IWD
improvement when drawn: GIH WR minus the win rate when the card stayed in the library
Games
games in which the card was seen