Chaosphere
The Free Meter Police
Midscreen, the ex-lightning combo ender is punishable with a wakeup attack. They can also just sit and duck and the 2nd lightning ball will go right over their head. And... it also depends where at they are on the screen when you do it and also how close to the corner you AND they are. There are multiple variables.
But there's another use too. I use ex-lightning off of blocked f23 sometimes. So f23~ex-lightning on block. This gives them a lot of time to try and react in between the 1st and 2nd lightning ball. If they try and punish you in between them, you'll get hit by their move but now they are either stuck in animation or recovery and the second ball will hit them RIGHT next to you and give you a free combo. This also gives them enough time to cross you up after they block the first lightning ball, but the second ball will come around and hit them allowing you to 1~shocker into a combo.
EDIT: Also, if they try to jump out of f23~ex-lightning on block after the f23, then the first lightning ball will hit them if they let go of block giving you an opportunity for more pressure. Sometimes when they try to jump out f2 will hit them in the air, so f23~ex-lightning gives you an anti air combo. I'd have to play around with what the max damage combo is after that.
But there's another use too. I use ex-lightning off of blocked f23 sometimes. So f23~ex-lightning on block. This gives them a lot of time to try and react in between the 1st and 2nd lightning ball. If they try and punish you in between them, you'll get hit by their move but now they are either stuck in animation or recovery and the second ball will hit them RIGHT next to you and give you a free combo. This also gives them enough time to cross you up after they block the first lightning ball, but the second ball will come around and hit them allowing you to 1~shocker into a combo.
EDIT: Also, if they try to jump out of f23~ex-lightning on block after the f23, then the first lightning ball will hit them if they let go of block giving you an opportunity for more pressure. Sometimes when they try to jump out f2 will hit them in the air, so f23~ex-lightning gives you an anti air combo. I'd have to play around with what the max damage combo is after that.