This is yet another example of the developers of this game nerfing sorcerer skills with zero reason and without forethought other than to just make the class unplayable.
I have been trying your pet spec in Cyrodiil after being begged by some guild members to remain playing ESO. Why does this skill NOT stop gap closers? Why does this skill kill a sorc that streaks over it but yet does nothing to stamina/melee classes that gap close over it?
Do you realize how unfair that is and how clearly this might make people not want to continue giving you money?
This skill should stop melee classes in their tracks. That is the point of the skill....especially if your intention is for sorcs to not escape combat and to fight close against melee toons.
Easy fix for pet spec. Add a bar slot for a pet and for pets only for sorcs/wardens. Balance the class around that.
Or make it to where only two bar slots total are required for both pets.
On a side note, Daedric Tomb should instantly spawn on the ground without the silly post cast animation, it should knock down Or the root should last longer and it should also return magicka when a mine is hit to help with sustain.