I was Rein and they had Orisa, every time I tried to do something she was in my face pushing me around and sending me back all my firestrikes, absolutely unfun.
I honestly don’t know what can be done to change that since you can’t swap your powers once you picked them so obviously you can’t change character either and adding a second tank would basically turn Stadium into a silly arcade mode where tanks never die.
At least on Junkerqueen against Orisa I was able to kill her team but as Rein it just felt like I couldn’t do anything, just like when I was Zarya and the enemy team had Dva, she got rolled 4 rounds in a row because I was full charge constantly.
So yeah, just like his perks in ranked Rein in Stadium feels underwhelming.
To be clear I’m not the best player but I’m not the worst player either, was GM tank for a while and I’m masters now so I tried to make Rein work as much as I could, even tried flanking to get people with charges but they don’t even die from it anymore unless you buy a bunch of talents and powers for it, sadly I had decided I was going to try a Rocket Hammer build with movement / attack speed.