I know the EX version can be used in combos, I'm not quite sure how it works, but it's probably something like groundstring 5BB j.[C] (is that possible? I think it probably is) j.22C rejump aircombo. Something like that.
EDIT: Research shows I was wrong. The proper setup is
2A 2B 6B 2C 5B j.B j.22C sj8.BC sdj.BC airthrow
It's just a cool midscreen meter combo.
For j.[C] though, you can do
2A 2B 6B 2C 5CC j.[C] j.22A land 623B (with followup).
That's a cool oki + fair damage combo. Works because j.22A on landing is cancellable into specials.