Hello, i´ve just startet to play Pro again and now saw often in the Trade chat something with sharpedo for Boss Team.
Maybe somebody can explain me how it works and with pokemon you need for the boss team

Many Thanks

There was a strategy which used multiple Sharpedos with Speed Boost, Destiny Bond and Protect to get rid of most pokemon fairly easy.

However there was a change to rules on medium and hard bosses recently which doesnt allow you to bring the same pokemon more than once to the battle (species clause).

Okay give it still any good team for most of the bosses for Medium?

Nope, the species clause applies for medium and hard bosses. Only the easy setting doesnt have that rule but they are not worth to do in my opinion.