Sorry, but what is super stacking?
Shelly, Frank, Bo, Rico and Dynamike are currently the only brawlers that are capable of super-stacking.
But what is it?
So basically, it's charging up your super and then finding another brawler who has high health stats (Tanks like Primo or Bull work well) and just going up to them, using your super and then spamming all your basic attacks and you just kind of get your Super like really quickly. (Although other brawlers like the ones I listed above can also perform this I think it's mainly a Shelly mechanic).
My apologies. I'm terrible at explanations. Perhaps the video below may help a bit?
Skip to 1:46 into the vid. It's where the person begins to explain the mechanics. The video is kind of old as you can clearly see it was from the earlier stages of Brawl Stars, but most of the information is still relevant.
Hopefully it helps.
Okay, thank you! :D
Almost all, if you find the right chance.
Mortis can too if he dashes through multiple enemies
Crow can if you stand inside someone and do quickfire
What do you think?