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Deepfathom Echo (228s)

PLCI · The Lost Caverns of Ixalan Promos · rare

Mana cost
Mana value	4.0
Type	Creature — Merfolk Spirit
Rarity	rare
Colors	G, U
Power / Toughness	4 / 4
EDHREC rank	9820
Promo	Yes

At the beginning of combat on your turn, this creature explores. Then you may have it become a copy of another creature you control until end of turn. (To have this creature explore, 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.)

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Printings

The Lost Caverns of Ixalan $0.29 The Lost Caverns of Ixalan Promos $0.34 The Lost Caverns of Ixalan Promos — The Lost Caverns of Ixalan $0.36

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Legality

Rulings

• 2023-11-10: Once Deepfathom Echo becomes a copy of another creature, it no longer has its triggered ability until end of turn.
• 2023-11-10: 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.
• 2023-11-10: 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.)
• 2023-11-10: 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.
• 2023-11-10: 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.
• 2023-11-10: 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.
• 2023-11-10: If the copied creature has {X} in its mana cost, X is 0.
• 2023-11-10: If no card is revealed, most likely because that player's library is empty, the exploring creature receives a +1/+1 counter.
• 2023-11-10: Non-copy effects that have already applied to Deepfathom Echo will continue to apply to it. For example, +1/+1 counters on it will still affect it.
• 2023-11-10: Deepfathom Echo copies exactly what is printed on the chosen creature (unless that creature is copying something else or is a token; see below). It doesn't copy whether that creature is tapped or untapped, whether it has any counters on it or any Auras and Equipment attached to it, or any non-copy effects that have changed its power, toughness, types, color, or so on.
• 2023-11-10: If the copied creature is a token, Deepfathom Echo copies the original characteristics of that token as stated by the effect that created that token. Deepfathom Echo doesn't become a token (although it might already be one).
• 2023-11-10: If Deepfathom Echo becomes a copy of a creature that is copying something else, it becomes a copy of whatever that creature is a copy of.