Super Staff Bros. was originally (and still is) a Smogon format where the main staff of Pokémon Showdown! are turned into Pokémon that may have a custom Ability and 1 custom move (and sometimes a custom mega stone/terrain/etc.), and are then put into a Pokémon battle. The format is randomized-meaning the 6 Staff Members (out of 100 total) you and your opponent receive aren't chosen by you, and if they have set variations (like may hold Rocky Helmet or Leftovers; may have Stone Edge or Rock Blast, etc.), those are also randomly chosen. Here is Somgon's Roster:
https://www.smogon.com/articles/super-staff-bros-brawl (it is Brawl because they've already done SSB and SSB Melee) :P
If you are asking because you saw this (
https://pokemondb.net/pokebase/meta/68283/a-super-staff-bros-for-pokemondb ); I thought it may be a good idea to make one for our Showdown! server (
http://pokemondatabase.psim.us ), and have gotten feedback on it, but it still can't be official until:
A) The roster gets big enough
B) Pokemaster allows it to be added
and C) someone codes it (KRLW890 said she'd look into it, but I cannot promise anything). :P
I hope this quenches your curiosity. :P
