Hello i believe tainted its too powerfull and one creature , venonous zombie it´s very very powerfull with it.
-Tainted affects all living objects, i see its normal, but ridicoluos how a zombie of cost 7 can you destroy all your trees and many conjurations for only 7 mana, this guy have resilient, more difficult to kill, and tainted with +7, i believe it´s too cheaper and powerful, if you like compare tainted effect in another creature, see wolf spider it´s sincerily ridicolous, a spider inyect venom and have a tainted condition normally with +9 and cost 15, i believe you must change this zombie to give tainted to +11 because for half cost you have a better oportunity of tainted, a resilient creature, and guys, i never seen play anybody a wolf spider because cost too much. i believe it´s easier for a spider tainted his victims that a zombie that normally its slow.
About sweeping, i would like that you think if its possible that if you have a monster a very big monster, would have the sweping trait in his attack, i don´t understad why togorath don´t have, you have seen in many films how a big monster when attack can affect several creatures in the same zone, because normally have a great size and large arms and tails, in lord of the rings you can see treemen than attack several orcs with only one attack, for example, in this game normally people don´t use this creatures because you spend too many mana in a creature that only can attack one creature every turn, i believe several monsters would have the sweping trait, if you consider that the have a great size, please think on it.
In the case of torgorath its worst, because you only can attack with a full attack, this meaning that you cant move and attack, an all these for 21 mana, and your opponent use a restrained spell or a teleport spell, and fnish his threat very effectively for a ridicoluos amount of mana.
