I've done this in training. But would it be viable in a match? Grenade split + forward attack (to angle your opponent with the grenade) + raygun (using the 1st grenade to knock into the 2nd grenade).
Morty is so clunky and unintuitive to play his ground up tilt is probably my least fave move , wish it was fire and his strings just don't work most of the time, there's new levels of incompetence with this game, every patch you can do less and less stuff, unless you main certain DC characters and IG, Bugs is so shit now, i came up against an IG and i literally cant do shit in the matchup anymore without safe coz he has no combos, really frustrating, cant blame me for thinking they don't know wtf they doing with this game, i just got Morty and he is already different from what i purchased, my main Bugs is a dead character, already struggled vs the high tiers but now lol safe is a wasted move slot most of the time its getting destroyed coz we cant even combo into it anymore. I have joker but hes just a generic fighting game character he doesnt do anything i havent experienced in any other fighting games despite being good so i get bored with characters like that, Batman, WW too, but manipulating safe was a new thing for me, all the Safe, tech i was excited to learn is literally removed from the game, this game is cooked in my eyes