Deathknell — Riftbound Keyword

Definition

Deathknell is a Triggered Ability keyword. It is functionally short for "When I die, [Effect]."

Related FAQ (1)

Does the damage from Kog'Maw's Deathknell ability happen before or after combat damage is healed?

After. Kog'Maw, Caustic has a Deathknell ability that says “Deal 4 to all units at my battlefield." Under the revised rules, all damage currently on units will be healed before Kog'Maw's Deathknell ability resolves. This does mean, however, that any units that survive his Deathknell will still have 4 damage on them after combat, and you can use a spell or another combat to finish them off. This is a change from previous rulings.