Ok, guess I can't improve this much further. This works from anywhere on the screen. I did it starting from ground throw to prove that any touch with Shuma into Hulk will lead to this kill, since this is the maximum scaling, maximum distance starter. It also works if next char is Haggar, but does less damage (still enough to kill about half of the cast).
Notation: Back Throw, H Mystic Ray, dash, st.L, cr.MH, tk M Mystic Smash, st.M, cr.MH xx M Mystic Stare, S, j.MHS, dash or TK M Mystic Smash to close the distance, S, j.HS, call Gamma Wave, j.S, M Mystic Stare xx Hyper Mystic Ray DHC Gamma Quake, st.H xx H-H AA Gamma Charge, call Double Lariat + H-H AA Gamma Charge, H-M AA Gamma Charge, st.H xx H Gamma Wave.
Ultimate Marvel vs. Capcom 3 Statistics For Kane Blueriver
At this time, Kane Blueriver has 537,198 views for Ultimate Marvel vs. Capcom 3 spread across 268 videos. His channel published over 3 days worth of content for the game, roughly 27.77% of Ultimate Marvel vs. Capcom 3 content that Kane Blueriver has uploaded to YouTube.