Trample
Whenever Deus of Calamity deals 6 or more damage to an opponent, destroy target land that player controls.
This ability triggers from any damage, not just combat damage, that Deus of Calamity deals to an opponent in increments of 6 or more.
This ability will trigger when Deus of Calamity deals 6 damage to an opponent at one time. It won’t keep track of the accumulated damage that it deals at different times.