What sorta buff could be given to him, besides fixing his ult so it doesn't do less damage in the air and maybe giving it more health.
I was thinking the one or more of the following:
1. Increase his clipsize to 5 from 8. If he's going to have such a shitty primary fire, he should atleast be able to keep it up. Alternatively, up the speed of his grenades so that they can more accurately land.
2. Let him lay down 2 or 3 traps instead of just 1. It's so easy to avoid them or destroy them, may as well. Honestly, half the time, even if someone does get trapped, you either are too far away to follow up on the kill or else you leave your mine there, meaning your leaving 2 abilities to get 1 kill. The ability to lay down 3 traps would make the battlefield something players need to watch, but it's not by itself overpowered.
3. Increase his riptire HP to 200, but add in a critical hitbox to the center of the tire on the sides. Someone else suggested this one and I think it's a good change.
4. Lower his ult charge. I mean, don't make it charge as fast as Sombra, but he feels like a guy who should always be firing explosive shit at you. And since his ult is fairly easy to counter...yeah, he should have it fairly often.