Territorial Maro
Creature — Elemental
Domain — Territorial Maro's power and toughness are each equal to twice the number of basic land types among lands you control.
The Coalition was more than just treaties and alliances: it was the soul of a world rising up against the invading tide.
Simon Dominic
Dominaria United (DMU)
• #184Rulings
The basic land types are Plains, Island, Swamp, Mountain, and Forest. Land types other than basic land types (such as Desert) don’t contribute to domain abilities.
(wotc • 2022-09-09)
Domain abilities count the number of basic land types among lands you control, not how many lands you control or how many of any type.
(wotc • 2022-09-09)
Rulings
The basic land types are Plains, Island, Swamp, Mountain, and Forest. Land types other than basic land types (such as Desert) don’t contribute to domain abilities.
(wotc • 2022-09-09)
Domain abilities count the number of basic land types among lands you control, not how many lands you control or how many of any type.
(wotc • 2022-09-09)