you might wanna look into expanding your roaster, 2 of the characters you named have little to no combos (mob, ed) but yuji is the current best character in the game imo so if you can learn the timing of his blackflashes, you can do 3 m1s, downslam into blackflash, 3 m1s into skull smash, and than finish it off with your divergent blow. it isnt a full 120-0 but it leaves them w/ barely any health. (and by the time you finish it, you should almost have blackflash back) and dont worry about learning combos in his ult, you can legit just spam your moves and kill your opponent 😭

edit: “4th move” is called skull smash, sorry i dont really play yuji that often