Since Umbreon is a Dark Pokemon, then use Fighting or Bug-Type moves against it
A Dark or Bug Type Pokémon like Umbreon, Murkrow, Butterfree and Beautifly for some examples would be super effective against Unown since Unown is a Psychic Type Pokémon.
Ghost & Flying. I believe that's it! Not dark or bug because although they're super-effective against Psychic, they are not-effective against Fighting. And not Psychic, because though it's super-effective against Fighting, it's not-effective against Psychic.
Water and Grass attacks are super effective against Onix.
Rock, electric, ice, and psychic types are super effective against Crobat.
Steel is super effective against rock type pokemon.
Well fighting types are super effective aganinst dark types like umbreon or Drapion
Dark, Ghost and Bug (such as Umbreon, Spiritomb, Shadow Ball, Silver Wind) are super effective Pokémon or Pokémon attacks against Mewtwo.
Umbreon is considered the better pokémon because Umbreon is a dark type and Espeon is psychic and dark is super effective against psychic.
A Dark or Bug Type Pokémon like Umbreon, Murkrow, Butterfree and Beautifly for some examples would be super effective against Unown since Unown is a Psychic Type Pokémon.
Flying and Psychic are super effective against fighting
Lightning is super effective against water. I hope this helps.
Ghost & Flying. I believe that's it! Not dark or bug because although they're super-effective against Psychic, they are not-effective against Fighting. And not Psychic, because though it's super-effective against Fighting, it's not-effective against Psychic.
Water and Grass attacks are super effective against Onix.
Umbreon beats psychic type which means Umbreon is better then Espeon since dark type is super effective on psychic, and for Glaceon against Umbreon, basically their pretty much the same. Other Person- First of all Umbreon is technically the strongest. Unless if you have Espeon learn Signal Beam. Espeon and Glaceon both have highest special attack so they're pretty even. From my point of view Espeon is the prettiest, Glaceon is the cutest, and Umbreon is the strongest (not opinion).
Bug Type and Fighting Type moves are super effective against it.
Rock, electric, ice, and psychic types are super effective against Crobat.
Steel is super effective against rock type pokemon.