Question: how to evolve eevee into glaceon in oras?
Answer: To get Magnezone and Probopass in Omega Ruby and Alpha Sapphire you just need to Level Up Magneton or Nosepass at New Mauville. To get Leafeon in you Level Up Eevee near the mossy rock in Petalburg Woods. To get Glaceon you Level Up Eevee near the Icy Rock in Shoal Cave at Low Tide.