At the beginning of combat on your turn, Deepfathom Echo 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.)
![Deepfathom Echo (Extended Art) [The Lost Caverns of Ixalan] | Black Swamp Games](http://blackswampgames.com/cdn/shop/products/b5b55178-617a-5f54-ba3a-8a688fbc5b2f.png?v=1702037392)
