How do you see that card for Boba into a campaign?. He is pretty useless for 13 and I found this card in the IA continuity project https://ia-continuityproject.com/

but remove the first ability that lets you choose 1 of your die colour. Seems balanced or overpowered?

Boba doesn't need to be changed to for the campaign. All the changes for characters have been for skirmish balance. But, that's the beauty of the campaign. You can house rule it up however you want. I personally don't like this iteration of Boba Fett, but enough people do.

We tested yesterday on return to hoth misson an was so OP. Too much damage per activation due to his spend movement abilities. I don't know how this works on skirmish but seems too OP