Deeproot Waters
Enchantment
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.)
A visit to the Deeproot Tree and its ancient spring replenishes a merfolk's connection to nature.
Illustrated by
The Lost Caverns of Ixalan Commander#152UncommonEnglishLegality
Rulings
Sep 29, 2017
The ability of Deeproot Waters resolves before the spell that caused it to trigger.
Jan 19, 2018
If an effect refers to a “[subtype] spell” or “[subtype] card,” it refers only to a spell or card that has that subtype. For example, March of the Drowned is a card that benefits Pirates and features Pirates in its illustration, but it isn’t a Pirate card.