Well if you have 2 bars you can use one ex to do tons of damge and get the opponent in the corner, mix up with sweet dreams and then throw out a 50/50 with the over head/low hit and use the second bar to do 50%... crazy stuff.
Mid to corner combo is the b1 2 u1 nightmare stance 1 dash b2 dash f4 21 ex spike into a jip f4 21 sweet dream or spike.
Low/Overhead 50/50 after mid to corner combo
after the sweet dream
b3, ex spike, JIP f4 21 close spike, f4 2 1 close spike - 53%
b2 ex spike, JIP f4 21 close spike, f4 21 close spike - 55%
Obviously they'll probably try and do something on wakeup, that's where you can bait and possibly get an even better combo off in the corner. If they get hit by the sweet dream you get a full combo(69% damage with one meter). This is the 69% combo I'm referring to, JIP, Up+3, Up+3, f4 21 exp spike, jip f4 21 sweet dream. If they're not dead after that you still have another sweet dream mixup.
You could still do an insane mixup game without meter, over 30% for sure off of the low or overhead.
Here's an example: overhead, spike, up+3, f4 21 spike. Same with the low. does 35 with overhead, 33 with low. Combine this with the 50% you'll do getting him in the corner and you got a solid 80% off of one meter, with two? Shit you got 100% off one mixup and a midscreen to corner combo.
Does anyone know if the spikes are breakerable? I'm curious cause ending something with just spikes could be good if they're near death and they have 2 bars.