Knee Smasher
Smash Ace
I'm sure that Charizard players from Smash 4 know that there are many, many, many scenarios in which Charizard would want to land from the air while using Rock Smash's super armor to tank a Dash Attack/running Usmash from the opponent, while hitting them, in order to escape a juggle. Since Rock Smash is removed from this game, what should be done in such a scenario? Neither Flamethrower nor Nair have close to enough priority to do what Rock Smash could do before.