Domain — This spell costs {2} less to cast for each basic land type among lands you control.
Flying
Domain — At the beginning of your upkeep, sacrifice this creature unless you pay {10}. This cost is reduced by {2} for each basic land type among lands you control.
Mana cost
16
Mana value
16
Printings
From
$3.56
EDHREC rank
#10120
Buy
Formats
Legacy
Legal
Vintage
Legal
Commander
Legal
Rulings
18 Jun 2021
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.
18 Jun 2021
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.