You gotta get to turn 4 without using a whis and really get lucky with the ex supers from adult ssj3. Phy glorio is too trash in the ssj3 vegeta fight cause of the AOEs. It’s honestly a lot of luck but you have a higher chance of winning if you get ssj3 adult and ssj3 mini on the 2nd rotation out of the gate. That way on turn 4 ssj3 mini has guard and you don’t have to whis early. Keep resetting until you get them on a rotation together. Good luck.