Tectonic Edge
From Modern Horizons 3 Commander set
Tectonic Edge
Land
: Add .
, , Sacrifice this land: Destroy target nonbasic land. Activate only if an opponent controls four or more lands.
Rulings
- Tectonic Edge’s second ability checks how many lands an opponent controls only at the time you activate the ability.
- Assuming you can activate Tectonic Edge’s second ability, you can target any nonbasic land with it (not just one controlled by an opponent that controls four or more lands).