I am currently lvl 50 and have not spend a penny. Through free packs I have unlocked 21 characters. My current arena squad is 4 star Sid, Lumi, Talia, Tarkin and 3 star Doku, all geared at lvl 6.
I cannot help but feel Tarkin is so slow!!! It is like for every 3 turns of Doku, Tarkin gets only one shot. The main reason I put Tarkin into the battlefield is for his attack down debuff.
If I drop Tarkin, who should replace him? I have Jawa, Chewy and Consular at 4 stars and gear lvl 5, but they could pick up fast if needed. Other characters are mostly 2-1 star one shot folks, such as Qui-Gon, Evoc Elder, Royal guard, and Resistance.
In case anyone want to add me as an ally, my number is 172-474-518.