I think the trait should change from enemy minions to allied minions. The infested minions would get more health and last 30 seconds or something. This way the trait a little bit more different from Xul's. Passive Allied minions that have less than 50% hp become infested around stukov change into infested minions.

I like the overall idea but i think you need a talent or some other way to get minerals. All the abilities use minerals which means you need to rely on aa to gets your initial kills and minerals. Maybe change to the trait to allow you to toggle between mining minerals from enemy structures and damaging them? Sonya only has 2 abilities that use furry and it seems you are trying to do a similar type of thing with minerals.

Interesting concept. I can't wait to see it once it is complete. I would remove this talent: Superior Maul (passive) - your maul does an additional 10% base damage; and each consecutive attack vs the same target, does an additional 15% damage up to 30% additional dmg. 1 = 10%, 2= 25%, 3= 40%, 4= 40%. You normally dont have talents that improves your ult until lv 20 and I dont see any reason why you would have a talent to improve your ult be you get it.

The only thing I dont like is limiting when you can get the bruiser camps. I would prefer if they just vanished after the the objective was taken.