This is my first write-up here. I hope I did everything alright; I must admit, I didn't come up with this set completely, but the final moveset was my idea as it was an adaptation of Negator's Uxie that he used in the Under the Bridge UU Wi-Fi tournament.
Uxie's analysis page
[SET]
Name: Lead Cleric
Move 1: Stealth Rock
Move 2: Thunder Wave
Move 3: Heal Bell
Move 4: U-Turn
Item: Leftovers
Nature: Jolly
EV: 252 HP / 4 ATK / 252 SPE
Why this set deserves to be on-site:
-Uxie is known as an incredibly bulky pokemon with its 75/130/130 defenses, but one stat that is often overlooked is its base 95 Speed.
-Surprising speed combined with Thunder Wave allows for your slower sweepers to reap the benefits of a crippled team.
-Very reliable in getting Rocks up.
-Still very useful as a cleric after it's done getting Rocks up, something most other leads cannot do.
Additional Comments:
-Toxic could be used over Thunder Wave, I suppose, but spreading paralysis is a large draw for this set.
Teammates and Counters:
-As a lead, it's very difficult to 'counter' what Uxie is designed to do, namely get Rocks up and spread paralysis, however, three leads come to mind that are a bit of trouble for Uxie: Ambipom, Rhyperior, and Torterra.
-Ambipom is a problem because it is faster and can taunt, but the damage taken from Fake Out is not too large. The best strategy for Ambipom also lends itself to a good teammate for this Uxie: Swellow. The key to beating Ambipom is to anticipate the Taunt and U-Turn to Swellow right away, who can easily dispatch of Ambipom and then let you set up. It may seem counter-intuitive to have a cleric on the same team as Swellow, but it can ease prediction if you accidentally switch into a Thunder Wave which normally renders Swellow useless for the rest of the match.
-The other two are less of a problem than Ambipom, but deserve to be mentioned. Uxie's goal of spreading paralysis isn't going to work if you can't paralyze the lead and force the switch so the strategy is just set up rocks and get out of there.
Teammates of note: Moltres, Rhyperior, any slow(ish) sweeper.
-Moltres is probably the best of these, because with you spreading paralysis, you allow yourself to run Modest without fearing too much, which turns LO Moltres in to a real monster, even more so than most already consider it; also, you can abuse Air Slash on stuff you can't OHKO knowing you have the ParaFlinch possibility.
Uxie's analysis page

[SET]
Name: Lead Cleric
Move 1: Stealth Rock
Move 2: Thunder Wave
Move 3: Heal Bell
Move 4: U-Turn
Item: Leftovers
Nature: Jolly
EV: 252 HP / 4 ATK / 252 SPE
Why this set deserves to be on-site:
-Uxie is known as an incredibly bulky pokemon with its 75/130/130 defenses, but one stat that is often overlooked is its base 95 Speed.
-Surprising speed combined with Thunder Wave allows for your slower sweepers to reap the benefits of a crippled team.
-Very reliable in getting Rocks up.
-Still very useful as a cleric after it's done getting Rocks up, something most other leads cannot do.
Additional Comments:
-Toxic could be used over Thunder Wave, I suppose, but spreading paralysis is a large draw for this set.
Teammates and Counters:
-As a lead, it's very difficult to 'counter' what Uxie is designed to do, namely get Rocks up and spread paralysis, however, three leads come to mind that are a bit of trouble for Uxie: Ambipom, Rhyperior, and Torterra.
-Ambipom is a problem because it is faster and can taunt, but the damage taken from Fake Out is not too large. The best strategy for Ambipom also lends itself to a good teammate for this Uxie: Swellow. The key to beating Ambipom is to anticipate the Taunt and U-Turn to Swellow right away, who can easily dispatch of Ambipom and then let you set up. It may seem counter-intuitive to have a cleric on the same team as Swellow, but it can ease prediction if you accidentally switch into a Thunder Wave which normally renders Swellow useless for the rest of the match.
-The other two are less of a problem than Ambipom, but deserve to be mentioned. Uxie's goal of spreading paralysis isn't going to work if you can't paralyze the lead and force the switch so the strategy is just set up rocks and get out of there.
Teammates of note: Moltres, Rhyperior, any slow(ish) sweeper.
-Moltres is probably the best of these, because with you spreading paralysis, you allow yourself to run Modest without fearing too much, which turns LO Moltres in to a real monster, even more so than most already consider it; also, you can abuse Air Slash on stuff you can't OHKO knowing you have the ParaFlinch possibility.