In short: Pokémon that are the best at what they do as far as the Online Metagame is concerned. "Staple" probably refers to Must-Haves, as it's a term used in other games. Every Over Used Team uses at least one of those, pretty much....:Ilex:. said:Can someone please fill me in on what a "Stapler" is? We all don't have the time to go to the mentioned forums and figure it out.