With the 40% dmg nerf this skill simply does no longer feel powerful in any way. Even with the latest buff this has not changed. I mean a measly 10% do I even have to say more?
With its tiny size it is not useful as area denial and in pve you have trouble hitting several enemies reliable without somebody pushing them together. Not to mention with the first tick being delayed you have an unnecessary hard time to hit something or somebody anyway.
But what if the radius of Lava Font was increased by and that annoying delay before the first tick was removed?
I think that would at least make it a worthwhile skill again.