Presenting this as an alternative to the recent Electrode Rain Dance set, and because Persian makes a useful Rain Dancer.
http://www.smogon.com/dp/pokemon/persian
[SET]
Name: Hypno-Dance Persian
Move 1: Hypnosis
Move 2: Rain Dance
Move 3: Fake Out / Taunt
Move 4: U-Turn
Item: Damp Rock / Focus Sash
Nature: Jolly
EVs: 4 HP / 252 Atk / 252 Spe
[SET COMMENTS]
<p>Persian is the fastest user of both Hypnosis and Rain Dance together, meaning you can put a Pokemon to sleep with Hypnosis, giving you an opportunity to Rain Dance. These factors allow Persian to set up Rain Dance without taking any initial damage.</p>
<p>Fake Out is the primary option as it can quickly eliminate Pokemon who rely on Focus Sash. If you feel Fake Out is unneeded, Taunt makes a great option, stopping any Pokemon with Sleep Talk, or an immunity to sleep. Taunt also deals with any leads relying on Stealth Rock. U-Turn is to make a quick exit if Persian does not want to waste time while Rain Dance is up.</p>
<p>Focus Sash can be used in place of Damp Rock for extra protection, however 8 turns of Rain is extremely helpful in UU. If you are worried about opposing priority leads, Focus Sash may be the item you are looking for. Additionally, use Limber when using Taunt over Fake Out, otherwise use Technician.</p>

http://www.smogon.com/dp/pokemon/persian
[SET]
Name: Hypno-Dance Persian
Move 1: Hypnosis
Move 2: Rain Dance
Move 3: Fake Out / Taunt
Move 4: U-Turn
Item: Damp Rock / Focus Sash
Nature: Jolly
EVs: 4 HP / 252 Atk / 252 Spe
[SET COMMENTS]
<p>Persian is the fastest user of both Hypnosis and Rain Dance together, meaning you can put a Pokemon to sleep with Hypnosis, giving you an opportunity to Rain Dance. These factors allow Persian to set up Rain Dance without taking any initial damage.</p>
<p>Fake Out is the primary option as it can quickly eliminate Pokemon who rely on Focus Sash. If you feel Fake Out is unneeded, Taunt makes a great option, stopping any Pokemon with Sleep Talk, or an immunity to sleep. Taunt also deals with any leads relying on Stealth Rock. U-Turn is to make a quick exit if Persian does not want to waste time while Rain Dance is up.</p>
<p>Focus Sash can be used in place of Damp Rock for extra protection, however 8 turns of Rain is extremely helpful in UU. If you are worried about opposing priority leads, Focus Sash may be the item you are looking for. Additionally, use Limber when using Taunt over Fake Out, otherwise use Technician.</p>