User blog comment:Jkphantom9/Some Ruby figure fun, I presume?/@comment-186.188.68.63-20140312165401/@comment-186.188.68.63-20140312223132

@Zebest

It would be cool to see that as a homage rather than just an overused trope.

And Ki (the concept given to it on DBZ) is still similar to the concept of Aura: it depends on the strenght of the user, they can channel it for attack and defense, it isn't related to magic and it isn't infinite.