^ Not a bad idea. Tri - 3 spells. Could even make it full duration DoTs & give an appropriate CD.

If we're going the way of a complete rework, and expanding on the 3 spells to 3 elements, it could be a combined fire/earth/wind elemental damage type spell. But then this led my train of thought off topic with a Kujata or Tetra-Disaster type summon/egi/move.