The reason I suggested Threxus team is because they are really synergistic and good.
The team has Rex DN Thrawn R2 GK
So it has a nasty tank called GK, R2 will smoke on him. GK will also cleanse.
Thrawn will give turnmeter to whoever he wants and fracture.
GK will give crit immunity to everyone else making Rex a bit more survivable when exposed to enemy attack.
DN will go fast due to Rex lead & Thrawn's turnmeter swap. Also he erases the annnoying speed up from Thrawn's basic and turn it into an ability block.
So for enemies it's really hard to choose who to attack first.
Probably GK first because there's no other way. That earns enough time for the entire team to take down the enemy.