I am thinking of a creature skill or a spell, which causes a status that is temporary. The status causes damage to the inflicted at the end of their turn. Once the status does its damage it is gone. As with Poison, Purify can remove the status before damage is dealt.
I'm thinking the status damage should be varied. If the status is inflicted by a creature perhaps it should be based on the creatures Attack power.
each could have something to do with this.
