0196 Espeon

Confusion has 4 DPT (Damage Per Turn) and 3 EPT (Energy Per Turn), allowing it to deal solid damage to anything that doesn't resist it. Zen Headbutt is a very poor move for PvP. 

Psychic Fangs is recommended for its low energy cost, helping Espeon to bait shields, while also debuffing the opponent so Espeon's Fast Moves deal even more damage. Shadow Ball is generally the more favorable coverage move, allowing Espeon to fight back against Ghost-types while also having an advantage against other Psychic-type Pokemon. Last Resort has less damage output, but is still considerable due to its neutral hit against Dark-type Pokemon. Psychic is now redundant, due to the lack of coverage and moderately high energy cost. 

Espeon's stats are just not very well distributed for PVP. It fails to have much of an impact on the meta, and probably shouldn't be used. Psychic Fangs improves its moveset efficiency, but Espeon needs more tools to become a bigger threat against the meta. 

The higher CP cap of Ultra League gives Espeon some more breathing room, allowing it to survive longer and deal more damage. Various Pokemon in this league tend to be weak to Espeon's attacks, or simply fall behind after taking too much damage from being debuffed. 

At least here Espeon's strong attack and good moves can allow it to deliver some solid pain. Espeon still lacks stats (in particular bulk stats) compared to many other Pokemon in this league, thus it tends to hog shields in order to force the issue with its debuffs. Just make sure this Pokemon shares some shields with the rest of the team.