Tracks spell durations in the Foundry VTT combat tracker. When a spell with a finite duration is cast during combat, a timer row appears in the tracker showing the spell, caster, and rounds remaining.
Timers count down automatically and disappear when the spell expires. Concentration spells stay in sync — ending concentration removes the timer, and expiring the timer ends concentration.
Requires: D&D 5e (dnd5e) 5.0.0+ | Foundry VTT v13–v14
See https://github.com/kamcknig/combat-spell-timer for more details.