Board Thread:Questions and Answers/@comment-31866171-20171030000541/@comment-33728484-20171030003319

SSJ3 Goku links well only with Super Vegito, and Golden Frieza is an unnecessary tank for a team that is already tanky enough (plus he's Extreme, which means less HP for your team as a whole, and he doesn't help the allies to super attack). You can control the rotations, so that Golden Frieza is never on rotation with SSJ3 Goku, but I would get rid of both of them anyway. As you said, SSJ4 Vegeta and Super Vegito already tank, and so does SSB Vegeta actually (but only after a super attack).

If you want an extra hitter, go with Godku, he has better links than SSJ3 Goku, and his passive isn't bad. Goku GT is also a good option (+2 Ki to SSJ4 Vegeta, and ATK & DEF +20% to all allies when Ki is 7 or more - SSJ4 Vegeta in particular would love that ATK boost). Whis is basically an extra Senzu bean, he shares Shocking Speed (+2 Ki) with SSJ4 Vegeta and Super Vegito, and also has a rare chance to stun. Speaking of stunners, Mai is the best AGL stunner in the game, and she also gives +3 Ki to AGL units (and a small ATK & DEF boost). So it just depends on what strategy you want to go with.

But even with an optimal team, don't expect the damage output to be as good as SSJ4 Goku's, the ATK boost that he gets from himself and from SSJ3 Goku GT is just too much. If you want your Super AGL team to be that good, you need a lot of orbs (and dupes). For now, the best way to get a good damage output is to control the rotations so that you have one SSJ4 Vegeta in every single turn.