I can tell you what I personally did however I don't remember what power I had and it did take a bit of luck with the power that I did have.
I tried a bunch of things and at the time the thing that worked was Sage Naruto, Normal 3* Gaara, Mabui and Wind Main.
SN - Gaara - SN Clone
Wind Main - X -X
Mabui -X - X
I had Wind Main mystery as Blind. Don't remember standard. Passives are a bit iffy because I don't remember what worked in the end or how they changed her in 3.0 but I was playing around with Blind round 1 passive so that it blinds Jigo and Gaki and other times I used clones to soak up dmg however I think I somehow used both but that could just be memory problems anyway I would recommend trying to blind.
I don't remember who I blinded with Mys, you can figure that out when you see their atk patterns.
Oh and I think I used Enhance Wind passive for 40% boost.
Round 1 launch the barrier because you're gonna want to nuke asap.
Round 2 wait for gaara. I'm pretty sure at this point you need SN to give chakra in the 2nd spot then you can nuke. I believe I nuked whoever was at the bottom. After you observe your dmg you can decide who you need to focus. Soon after I think you should be able to use both SN to finish off a couple more pains and maybe use Mabui too. Shurado with his interrupt can be annoying and I think you might have to just tank his mys with mabui.
Round 3 I really don't remember much at this point, most should be dead or have enough HP to just standard hit and kill them. Pick whoever you want to atk with wind mains mys if it is available.
This is what I roughly remember doing.
It took a bit of luck with the blinding and timing atks on them but this was very promising when I thought about continuously nuking them.
If you can't get to roughly what happened in round 3 after many tries then you probably don't have enough power to luck this yet.
Hope this helps at all.