Phoenix squad advice - 4/4 is insane!

Thanks for the response, appreciate it! im going to give everything to my phoenix team in the hope i 7* Thrawn before he goes on his holidays for another few months. I was ready for Grand Master Yoda back in the day because i rocked a decent Jedi team at the time, I got Palpatine the second time round, and then got R2 and CLS recently when they returned. I knew that Thrawn would come straight after but ive stupidly put every resource i have into getting CLS to gear 12 since unlocking a few weeks ago. I should be able to get 2 or 3 omegas done before Thrawn goes in 6 days, which 3 characters or abilities would say would benefit the most being omegad?