
Whenever you cast a Merfolk spell, create a 1/1 blue Merfolk creature token with hexproof. (A creature with hexproof can't be the target of spells or abilities your opponents control.)
Deeproot Waters has 2 printings, first in Ixalan (2017). EDHREC ranks it #4,444 among Commander cards. It appears most in Hakbal of the Surging Soul decks (22,270 on EDHREC). 1 public deck on TCG runs it. It has 2 official rulings.
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.