A wounded creature has been grievously injured. The subject of this effect takes 1d4 damage at the beginning of their turn. If the subject of this condition moves, they take 1d6 damage for every 15ft of movement. (whether or not this movement is voluntary) This effect is removed if they are healed 1/4 of their maximum health (net health gain, since the effect was applied, or to maximum health) or if an ability states that it can remove the wounded effect.
When an enemy attacks the subject of this effect, they can add 1d6 damage to their attack damage on a successful hit.
This status can be applied if an attack against the subject is a critical hit, and maximum damage is rolled. (or maybe half of the damage dice rounded up, roll their maximum)