Board Thread:General Discussion/@comment-30406012-20180212163452/@comment-28063230-20180213175056

Liammclovein wrote: think goku could use spirit bomb whilst in UI form?

He can dodge whilst building up the energy (possibly) and maybe make it more powerful than anything he has done before.... and with the rest of the team on the stands, they can give even more energy than before to make it even more powerful... A-18 could (in theory) give infinite energy.

And yeah, I think there shouldn't be any problem with UI Genki-dama, it doesn't have to be on base, it has to be out of SS, and UI is clearly not a SS state.

But I don't think it will happen, and if it did, it would only repeat the mistake of having a Genki-dama be powerful just because, ignoring any logic behind it.

Maybe Toriyama wants to pull a Beerus again and making Goku not being able to defeat Jiren.

Also, I don't think we'll see UI Kaio-Ken yet, maybe on a future arc, and while on that subject, Kaio-Ken is yet again used inconsistently, now Goku can use it consecutive times and he's body is taking it as if it was nothing.

Add to that the SSB stamina draining issue, plus how Goku is tired and beat up already and you have the perfect mix for awful writing, this can only be argued against with head-canon, as nothing has been done to explain how is this possible.