Depends. Firstly, as I said, I find that particularly fun in ranked where the other person doesn’t immediately know I’m doing it.
Secondly, your milage will vary by the button. Plenty of people can threaten with only one button. I like Claws Mk. Still better in footsies than over half the cast and still have df.mk. Command throw characters, too, can still threaten.
Focus fighter: can only attack with focus, red focus and W - Ultra.
All characters allowed, standard 99 second time limit, all movements and actions that do not have hit boxes allowed, no jumping attacks except for aerial ultras and finally, violations of any of the rules are a forfeit of the round.
I get close HP frame trap, HP Criminal Upper, HP Badstone, F+HP Overhead, far HP anti air, crHP anti air and whiff punish, Neutral Jump HP pressure, HP Zonk for fireballs. ect
You gotta look at ALL of the tools available to your character that uses that one button. People can still chip you out for instance. DB does become a lot stronger without throws but typically when people play novelty matches they aren’t “playing to win at all costs” they just are fucking around so they’ll still try and deplete the other persons health by fighting.
It’s fun and can actually improve your game somewhat because it’ll cause you to think creatively about how to utilize a tool you normally might not use a specific situation. Improves your spacing with some buttons too.
I did it once with Cody with MP. Beat a Fei player who came back after beating me one time then he lost the 2nd time. By the 2nd time I had started to zonk his Rekkas since he was a bit obvious with the timing/spacing he’d do it.
Makoto I’ve done but only vs CPU. She can actually get pretty far with just MP. You get her god button (sMP) you get F+MP for pressure/approaches. crMP - MP Hayate for buffer footsies and her MP Oroshi overhead which combos to sMP (1F link with no plinking though since it’s only 1button character specific too). A bit tough to anti air with only MP Fukiage and sMP though lol. Found I went air 2 air a lot with jMP
Another fun one is “Only specials” you can’t use normals AT ALL. This one really gets lopsided for some characters though lol. With just specials Vega is pretty garbage for example.
We once played “spectators map buttons, players figure it out during matches”. Quite funny when you realize that they can map some buttons to nothing and then put LP and LK on opposite ends on 8-button sticks.