Use umbreon with baton pass. I've posted on this so many times. I personally think Umbreon is a mid tier or top tier wall because of baton pass which lets it maintain offensive presence. It eases prediction like hell.
Forgo protect, or don't. The standard set is also good.
Yep! When I think of top tier walls in OU like Skarmory, Chansey, Slowbro and Mega Venusaur, Umbreon is never far from my tongue. With that beautiful typing for countering.... All those dark and psychics types lacking another stab and coverage... Like Medicham, right? Yeah! That and bisharp! Umbreon is a wonderful stop to those threats, which is why he's a top tier wall. I love his access to relevant recovery that doesn't take 2 turns to work and ISN'T weather dependent, his expansive support movepool like confuse ray and his good attack to stop set up sweepers.
And we can talk about all those advantages he has over chansey. Do you know how annoyed Chansey is with Psychic moves? Yeah, take THAT, chansey. Umbreon beats psychics better, at the cost of... getting hit by the non-existent bug attacks in OU. No one even USES landorus-t anyways. And ignore that fairy weakness... you know, one of the best offensive attacks in the game... I mean, chansey wasn't taking azumarill anyways... Yeah, chansey obviously can't take fairy attacks either.
Chansey has always wanted a dark resist because with it, she'd be so much more willing to take knock off attacks. Umbreon just laughs at knock off users like Conkeldurr, Bisharp and Landorus-i. Here, eat foul play!
And for the calcs to prove how much more worth umbreon is than that overrated fat bitch chansey, here's some calcs proving his prowless!
252 SpA Life Orb Latios Draco Meteor vs. 252 HP / 252+ SpD Umbreon: 165-196 (41.8 - 49.7%) -- guaranteed 3HKO after Leftovers recovery
252 SpA Life Orb Latios Psyshock vs. 4 HP / 252+ Def Eviolite Chansey: 226-266 (35.2 - 41.4%) -- guaranteed 3HKO
Ignore the fact that chansey only takes 25% from draco meteor! Psyshock is deadly with that huge 3hko.
252 SpA Life Orb Greninja Hydro Pump vs. 4 HP / 252 SpD Eviolite Chansey: 101-121 (15.7 - 18.8%) -- possible 6HKO
252 SpA Life Orb Greninja Hydro Pump vs. 252 HP / 252+ SpD Umbreon: 121-142 (30.7 - 36%) -- guaranteed 4HKO after Leftovers recovery
Soaking. It. Up. Umbreon might as well be taking a bath... under a shower with 50psi.
252 SpA Life Orb Sheer Force Landorus Focus Blast vs. 252 HP / 252+ SpD Umbreon: 244-289 (61.9 - 73.3%) -- guaranteed 2HKO after Leftovers recovery
252 SpA Life Orb Sheer Force Landorus Focus Blast vs. 4 HP / 252 SpD Eviolite Chansey: 208-247 (32.3 - 38.4%) -- 97.9% chance to 3HKO
Have fun eating that 50% from foul play, landorus! I bet you'll never be the same after that one!
You people have no ambition whatsoever. For a top tier wall like Umbreon, only S rank can suit him.
But seriously. Why the hell do you use umbreon when you have chansey? Are you THAT scared of Celebi or something? News flash, can't even beat mew with Umbreon. Jirachi is still going to scare the shit out of you with all those flinches. Relevant psychic megas trample you (aka Medicham/Gardevoir). You're not even a decent special wall when chansey is around and has less weaknesses. And offense pressure? Yeah, foul play is getting ALL the pressure, especially since Umbreon, like Sylveon and every other eevee cleric, has to run Wish+Protect+HealBell and only has one room for stab. Otherwise, enjoy dying while you wait for wishes or only recovering on opponents that can 4hko you (since ones that can 3hko you will eventually win).
Edit: Let's quickly talk about PD umbreon "Eating up TTar/Hippo+Exca cores". First, 128 Defense. You teeter on the edge of getting 2hkod... In fact, with rocks and sandstorm (since that's the name of the sand offense game), you're dead!
252+ Atk Life Orb Excadrill Earthquake vs. 252 HP / 128+ Def Umbreon: 179-212 (45.4 - 53.8%) -- guaranteed 2HKO after Stealth Rock, sandstorm damage, and Leftovers recovery
Lol nice counter. Sure, foul play is a 2hko, but you DON'T get that hit. You're dead coming in to stop this. Stopping hippowdon? Big deal. I know hyper offense mons that 'counter' hippowdon. It isn't terrifically difficult. However, umbreon can't even prevent rocks from coming up unless you really think 65 speed taunt is a good idea. Any decently strong physical attacker that isn't 100% resisted by umbreon (which, last I checked, none were...) will demolish umbreon. Sure, you survive support ttar. It's SUPPORT. Exca demolishes you. Sand wears you down. What about giving Conkeldurr and bisharp free switches all day? How about not being able to touch opposing stall and bulky offenses because of your mono-dimensional stab?
Sylveon is better than umbreon because there is legitimate power in her one stab. That Hyper Voice with pixilate isn't something you causally waltz into. not only that, Sylveon has a better typing with more relevant resists. Fairy is a better attack type, coming off a better attack stat and, to be perfectly honest, a better mix of stats for a wall, while not leaving it useless in other archtypes. Umbreon is getting way too much hype.