Ever wanted to use your favorite Gible or Graveler in competitive battling, but didn't have a tier to use them in? You could in Medium Cup. If you've gone to the Pokexperte server, you will have seen the clause for the Medium Cup metagame. Medium Cup is the logical follow-up to Little Cup, and allows only middle evolutions. This is a list of all 58 middle evolutions:
The main concern is that these Pokemon wouldn't be enough to create a tier. Of these 58, some, such as Dusclops, would be vastly more viable than things like Kakuna. This would lead to a small pool of viable Pokemon. Suspect testing would be needed, and some Pokemon would probably be banned. Medium Cup has the potential to become an interesting metagame.
Code:
Ivysaur
Charmeleon
Wartortle
Metapod
Kakuna
Pidgeotto
Pikachu
Nidorina
Nidorino
Clefairy
Jigglypuff
Golbat
Gloom
Poliwhirl
Kadabra
Machoke
Weepinbell
Graveler
Magneton
Haunter
Rhydon
Chansey
Seadra
Electabuzz
Magmar
Dragonair
Bayleef
Quilava
Croconaw
Togetic
Flaafy
Marill
Skiploom
Piloswine
Porygon2
Pupitar
Grovyle
Combusken
Marshtomp
Silcoon
Cascoon
Lombre
Nuzleaf
Kirlia
Vigoroth
Loudred
Lairon
Roselia
Vibrava
Dusclops
Sealeo
Shelgon
Metang
Grotle
Monferno
Prinplup
Staravia
Luxio
Gible