@squidslaugh started doing this os by accident, I think os shield drop bair/fsmash or dair/dsmash is an easy place to start because you can do the same inputs without reacting at all for both options
I feel like a lot of people want to play a game where they can do whatever they want and the game's decision making system is "balanced" in the sense that they're never punished severely for any action they do LMAO