Best F2P counter to incoming Krennic/ Death Trooper Empire meta

Another idea:

Rex (L)
Ventress
Wiggs
Palpatine, Shoretrooper, Fett or someone else

Idea is to dispel their Shoretrooper with Ventress and kill a character with Wiggs (mod Biggs to be slightly slower than Ventress). After their TFP AOEs he will hopefully crit a couple of your guys so that your Rex will gain TM so he can dispel and give tenacity up. If you run Palps/ Boba then you can stun/ ability block the enemies and delay their attack if TFP stuns Rex. If you run Shore then TFP won't be able to ability block Rex.

The problem is on Defense I'm guessing the AI will target Krennic, and if they have Death Trooper Zeta'd to give Krennic crit immunity you won't kill Krennic and will just give DT turn meter instead.