Can I 7* Thrawn?

Nope

"Syrup_Chugger3;c-1562484" wrote:
Nope

what should i improve ?

speed. Levels. Gear. Abilities. Everything really. They're 7*, but especially without Chopper you're going to need those other characters maxed.

I had most of mine at g10 and it was still a struggle, but doable.

My team was Hera, Ezra, Zeb, Chopper, Kanan. It is supposedly possible with Sabine but Thrawn gets cranky when Lady Ren is around.

Everything I've read says you need Chopper, and that if you are going to use Sabine, it's to replace Ezra.

Myself, I did it with Hera, Kanan, Zeb, Ezra, Chop. And you'll need better gear and speed. Here's what I used (Mods and all): https://swgoh.gg/u/yerffcaasi/squads/11858/

And that's bare minimum IMO. I didn't keep track exactly but I bet I did at least 70 attempts before I pulled out the win.

Gear up Ezra and make him faster, he is pretty much your main DD

The baseline for most of the challenging legendary/heroes' journey events is G8 with good mods.

Your mods are decidedly not good. So, gotta build up more.

How far am I off?
http://swgoh.gg/u/boii/squads/69169/

As I said, the baseline for most of the challenging legendary/heroes' journey events is G8 with good mods. If your mods aren't good, aim higher, particularly on your attacker and Kanan. More is always better.

You should also Omega everyone's Basic and Unique abilities.