and how would you "fix" the HoT? 15% heal over 10s, i like it quite a bit and dont see how it could be perceived as "broken".
Well, on my Commando I've got 20k hp, so the HoT heals 3000 of 10 seconds, or 300 each second. Problem is, people can deal much more than 300 each second in those ten seconds. For it to be any use, I practically have to use it at the very start of the fight.
Now if it were a 3000 instant self heal, at least then it might be useful, giving us a precious 3-4 seconds in the middle or tail end of the fight.