What if a pokemon could have all its possible abilities active at the same time?

Wich one would be broken as hell? Wich one would be useless or not change at all?

I can think of some interesting combos like levitate and heatproof bronzong, infiltrator prankster whimsicott and scrappy early bird inner focus parental bond megamom

And a weird one, sableye, dont think that stall and prankster would ever work together