Some conditions have scripted behaviors and this script runs at an early point in those scripts, letting you alter the process

Key

preApplyCondition

Arguments

args.effect - Effect object for the condition

args.data - Data which is dependant on the condition being executed.

Examples

Take less damage from Bleeding

Usage: Reduce the damage from Bleeding by 1

if (args.effect.conditionId == "bleeding")
{
    args.data.damage -= 1
}

---

Modify Formula

Usage: modify the damage formula from Ablaze

if (args.effect.conditionId == "ablaze")
{
     args.data.formula += ` - ${this.actor.system.characteristics.t.bonus}`
}