I think Battloeborn’s hero pool is too small for bans.
Generally bans are used to remove a character from the roster that the community deems overpowered or that someone has a hard time playing against.
Right now I can already tell you 90% of bans would be Galiliea, Alani, Miko, Rath, and maybe Thorn.
The biggest problem I see is
Ban 1 - Reyna
Ban 2 - Alani
Pick 1 - Miko
This leaves Ambra and Kleese to support. Ambra has been nerfed pretty hard and her healing isnt even close to Miko. Kleese can be really easy to shut down, and doesnt get an actual heal to lvl 5 if they choose the helix for it.
The team with Miko has a clear advantage.