Yoda 7*

Just beat, took about 50 tries (including retreats). Like most, I only have 5 7* Jedis so had to make what I have work. I don't have Bariss, unfortunately. I used level 70 Lumi (L), QGJ, JC, MW and EK. All Gear VIII minus the 50 piece grinds, and MW only Gear VII. Lumi was useful for her 13% Jedi evasion. That and lots of tries for RNG luck where Yoda did not go super berserk and 1 shot anyone or 5 shots in a row anyone. Need weak noodles next to him - I tried to fight him with Bariss so her health equalizer would bring him down, but he would go berserk. JKA is a no-no with his hea block. High damage toons would hurt even though they're slow.

So finally I focused only on him and burned him down first, got very lucky and succeeded (he is squishy without all the super buffs), and then had no problem burning his JK guardian and JC, both of which do very little damage. Even EK managed to stun him (very briefly, his turn meter is ridiculous). His sidekicks are fully loaded, it helps to find weak toons - an unsuccessful attempt against his QGJ who had 3 more health boxes than mine.

So now what? He's not really viable for Arena and I just burned all my money, gear and purple mats to get him, and most Jedi also not so helpful for Arena. Idk...

As a side note, who said that RNG fail and retreat xxxxx number of times until RNG succeed is "gameplay"? Not fun in my book.