Haven’t actually fought Priya yet but if you can confuse her she’d destroy her own team, even better if she ends up shooting her own Payback Negan . Pete is annoying but that’s why you have stuns, taunts and confuse.
F2P (and RNG reliant) team: Erika OR Mirabelle leader, Shiva (OR Ajax with a stun weapon even though he’ll get melted), Douglas, Disarm Michonne, Red Governor.
Michonne has a confuse wep, pray to God that it confuses Priya and if not try again turn 2. Shiva has stun claws so try to stun Pete. If not, use active stun next turn and hope that it does stun him (or if you have Ajax with a stun gun, shield and get easy stuns). Turn 3 you can use Dougla’s confuse active to confuse Priya again and once ar’s build you can go from there. If you mod your Michonne with crit damage like I do, you should be able to take a large chunk out of Pete’s health with her AR. Red governer helps keep everything under control with neutralize and his impair AR.