Help in Pocket Monsters [Pok�mon] FireRed on Eevee?

The only way to evolve Eevee into Umbreon or Espeon is through Ruby, I personally like Umbreon, I would also say Blissey and Crobat are hard to get in Ruby, actually you can only get Crobat in Ruby so I would trade for both and get Umbreon, I would teach Umbreon Faint Attack, Shadow Ball, Physic and Dig. The key to any good team is to make sure you do not have the same type on any Pokemon, for ex I would say Crobat: Fly, Poison Fang, Mean Look, Steel Wing. For Blissey, Ice Beam, Thundebolt, Sing, Dream Eater. Gengar: Giga Drain, Curse( make sure to have Potions ready) Hidden Power(you can figure out the type against Kecleon), Sludge Bomb.