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.
Zezhou Chen
Ixalan (XLN)
• #51Rulings
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.
(wotc • 2018-01-19)
The ability of Deeproot Waters resolves before the spell that caused it to trigger.
(wotc • 2017-09-29)
Rulings
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.
(wotc • 2018-01-19)
The ability of Deeproot Waters resolves before the spell that caused it to trigger.
(wotc • 2017-09-29)