Better with mei instead of ao - but thats the cheaper version you could go for. Works a bit better with her chase too.

But on topic with the thread: GNW Tenten + Lightning main + whatever else you want = gg.

It largely depends on what other ninjas you can place on the team. I personally use darui and sage naruto with mine since sage grants an extra 20 chakra a turn. Take the 4th standard with bloodthirsty and you'll have 80 chakra round 1. This allows you to use both lightning main's acupuncture and tenten's mystery off the bat.

The other variant I recommended to a guild mate involved them using mei and hidan with their tenten. For theirs I recommended the lightning armor mystery since they didn't have another chakra battery for the team. It's slightly more limiting in what it can do - but still grants a turn 1 tenten nuke and a turn 2 mei nuke. If possible, take the bloodthirsty over the lightning armor since that allows two chakra standards for +40 total and frees up your mystery slot on your main. However if you don't have another chakra gainer it won't matter anyways (since tenten will use all 60 and you won't be able to use the lightning mystery turn 1 regardless) and would likely be better off with lightning armor.

I recommend anbu tactics passive since the health gains from tenten's mystery are insane, and people tend to focus her ASAP when they see the line up. It is important to have a ninja with High float -> Repulse chase to link tenten's two Repulse - >HF chains. Thankfully several sword uses grant that. If you post some of your ninjas I'll give you more details on what talents/lineup I would recommend.