Why are there 2 Raijus?

[wereotter]

Forked and Fleeting Raiju do deal the same amount of damage, which is why you can use the one you prefer under normal circumstances, unless you meant something else?

Except I'm pretty sure (it's been a minute since I've checked) Forked Raiju animation locks you whereas Fleeting does not.

And in most cases you just use raiton under a trick attack window, so disconnecting is not something you really want to do.