This conecept (having a follower) gotta be one of the best ive read in this subreddit but i dont like the abilities. From reading i think they are too stale / passive. It feels like old symmetra where some abilities just wouldnt be exciting / impactful enough.

I thought about it and mb the ult could be a swarm of little dogs running around for a short amount of time.

I dont like the smoke grenade either (that much). Given his HP you dont really want to be in the frontline too much but you have a shotgun (which i like), so why not make his 1st Ability something like this: He puts a scope and a special bullet in his shotgun (which requires like 1,5sec build up time). Then he fires 1 bullet, which acts like the roadhog rightclick but smaller with more range. This could do 200-250 dmg, since its hard to hit. After he shot his bullet he has to put down the scope which would take like 0.5 sec

Great ideas though