Hey, nice job on the 7* Vader.
Really, your mods are holding you back. You need to do some extended mod farming. You need some 5* speed arrows, potency crosses, and protection circles. Set types are not critical, so until you have the necessary squads, just get health mods.
If you don't have the stomach for mod farming, here are some nutshell recommendations without knowing what kind of competition you are up against in Arena:
- Pit: Teebo (L), Phasma, Qui-Gon, Wedge, Biggs
- Arena 1: Palpatine, Royal Guard, Wedge, Biggs, Qui-Gon
- Arena 2: Palpatine, Royal Guard, TIE Fighter Pilot, Dooku, Vader
Major farming areas are Arena shipments, Cantina shipments, Cantina battles, GW shipments. From these, recommend building:
- IG-88. You need this scoundrel for heists, and you need this droid for droiding on droid squad in AAT.
- Qui-Gon: Need him for P1 Pit
- TFP: he's a beast and will help your Empire arena team.
- Teebo: Need him for P1 Pit
Also recommend farming the FOTP and FOST hard nodes. FO is very good right now and looks well positioned for the future when Maul falls. You will need Kylo for the FO team eventually.
Again, your biggest problem is with mods. Put a full set of (4) Crit Damage mods on Biggs and Wedge. You need the full set for the +30% damage bonus; 1-2* mods will work for the bonus. Crit Damage triangle for the Wiggs duo where you can find them.
For the Pit raid, Teebo needs all the potency you can lay on him. For now, take the cross off of Poggle and give it to Teebo. He also needs to be as fast as you can get him. That is going to be tougher since you don't have much speed. So for now, borrow the speed arrow from Tarkin when you need it.
Speaking of which, why aren't you using that speed arrow in your arena team? This is a definite problem. All of your speed arrows need to be on your arena team. This is of the utmost importance. Tarkin, Lumi, JC, Poggle ... none of these guys are on your arena squad and they are hogging all the speed. Fix this immediately.
Other than that, you need gear. Some people save up 1500 crystals in the bank to buy those raid or other troublesome pieces when they appear in shipments. If saving crystals is not going to work, well there is currently a sale on crystals for May 4th celebrations ...
Cheers