Alright, so here's the team I need to use for my LeafGreen Scramble:
-KimboSlice the Hitmonchan, must have all three Elemental Punches
-Medium the Drowzee, if I evolve it, i must teach it every level-up move except one that I must skip.
-Rhyhorn, it must learn Rock Tomb and solo one of Koga's before it can evolve, and Blizzard and solo one of Giovanni's, otherwise I can only use it once in the Elite Four.
-Gyarados, it must have Substitute and Flail.
-Jigglypuff, evolve it immediately, and it can only learn 100 base power or more attacks for attacking moves.
-DonJuan the Magnemite, -Speed nature, must solo Fighting Dojo and Sabrina before it can evolve.
-Bulbasaur named Replaceable that I must abandon or permanently box before the Cerulean City Rival battle or Misty.
Thanx to doomvendingmachine, Senfroz, Vratix, Ruwisc, Dexington and Texas Cloverleaf for the suggestions. Everyone wish me luck :D