This is by far the MOST optimized solo Shuma-Gorath combo using only one meter and netting JUST over 1,000,000 damage.
Thought I would give the inputs for this:
jump, air H, air Up+H, land, cr.H, forward+H, S, sj.Up+H, H Mystic Smash, land, M (two hits), cr.M (two hits), cr.H, L Mystic Stare, S, sj.M, M, H, S, land, cr.H, L Mystic Stare, S, sj.H, S, land, H Mystic Ray, L Mystic Stare, Hyper Mystic Ray, jump, air S, land, H Mystic Ray
a couple of things to consider:
In order to get MAX damage and not 990,000 like I have netted sometimes, you have to delay that last L Mystic Stare a bit so that most, if not, all of those eyeballs contact the opponent. If you do it too early, the combo will still work, but you will get less hits on the eyeballs when you first do L Mystic Stare, and less hits when they explode (and less time to get the jump S afterwards). Also the timing to get that very last H Mystic Ray is TIGHT. You have to jump up and IMMEDIATELY press down to start charging for the Mystic Ray...I have screwed this up so much times trying to get this right. I found out that ultimately, the amount of time you get to charge depends on how precise your last L Mystic Stare was. The more eyeballs you land on your opponent, the longer the amount of time they are in the air (and the higher they are) so that you have more time to jump, start charging down, before actually pressing S to cause the hard knockdown state.