I saw this 'hack' on the old {VA}Omega server, run by Eyes_Only (he's been in meph's chat recently, so you could ask him about it if you needed to ^^).
It's Force Lightning, but it's also Force Push. O_O
Dooku/Emperor shoot lightning out of their hands, and you're pushed back, just like force push.
It's got the same range and stamina cost as force push, it just has the lightning graphic and does a tiny bit of damage (as much as lightning does).
xD