This is using the Wifi tiering.
Froslass @Focus Sash
Ability: Cursed Body
Evs: 252 SAtk/252 Spd/ 6 SDef
Nature: Timid(-Atk, + Spd)
Ice Beam
Taunt
Spikes
Destiny Bond
Froslass has a lot of roles that it does for my team, such as, spinblocker and lead. My team needs as many layers of spikes as possible so it's easier to sweep. Taunt is used so I can stop them from setting up their entry hazards. Focus Sash is obvious.

Froslass @Focus Sash
Ability: Cursed Body
Evs: 252 SAtk/252 Spd/ 6 SDef
Nature: Timid(-Atk, + Spd)
Ice Beam
Taunt
Spikes
Destiny Bond
Froslass has a lot of roles that it does for my team, such as, spinblocker and lead. My team needs as many layers of spikes as possible so it's easier to sweep. Taunt is used so I can stop them from setting up their entry hazards. Focus Sash is obvious.

Aggron @Leftovers
Ability: Rock Head
Evs: 252 HP/252 Def/ 6 Atk
Nature: Impish (-SAtk, + Def)
Head Smash
Dragon Tail
Stealth Rock
Thunder Wave
Aggron is a fantastic physical wall because of it's great defensive typing (too bad the X4 weaknesses). It can soak up many of the attacks coming at my sweepers, such as dark and ghost etc.. Head Smash is used to demolish the Ice types. Dragon Tail to phaze. Stealth Rock for another entry hazard. The final moveslot I don't know what to put in, too bad no instant recovery.
Ability: Rock Head
Evs: 252 HP/252 Def/ 6 Atk
Nature: Impish (-SAtk, + Def)
Head Smash
Dragon Tail
Stealth Rock
Thunder Wave
Aggron is a fantastic physical wall because of it's great defensive typing (too bad the X4 weaknesses). It can soak up many of the attacks coming at my sweepers, such as dark and ghost etc.. Head Smash is used to demolish the Ice types. Dragon Tail to phaze. Stealth Rock for another entry hazard. The final moveslot I don't know what to put in, too bad no instant recovery.

Milotic @Leftovers
Ability: Marvel Scale
Evs: 252 HP/ 252 SDef/ 6 Def
Nature: Calm (-Atk, + SDef)
Scald
Dragon Tail
Sleep Talk
Rest
Milotic is the best (IMO) pure bulky water in UU. I'm using the ResTalk set because of the great synergy with Marvel Scale. Scald is used to burn those pesky physical sweepers, stopping them cold. Dragon Dragon Tail is useful, as with Sleep Talk removing the negative priority.
Ability: Marvel Scale
Evs: 252 HP/ 252 SDef/ 6 Def
Nature: Calm (-Atk, + SDef)
Scald
Dragon Tail
Sleep Talk
Rest
Milotic is the best (IMO) pure bulky water in UU. I'm using the ResTalk set because of the great synergy with Marvel Scale. Scald is used to burn those pesky physical sweepers, stopping them cold. Dragon Dragon Tail is useful, as with Sleep Talk removing the negative priority.

Porygon2 @Eviolite
Ability: Trace
Evs: 252 HP/ 172 Def/ 86 SDef
Nature: Bold (-Atk, + Def)
Recover
Ice Beam
Thunderbolt
Magic Coat
I personally love Porygon2 because of it's great defensive qualities. I put more physical bulk so it can help out Aggron, beacuse Aggron doesn't have a recovery move. BoltBeam is for the great coverage and Magic Coat is to block Taunt.

Mismagius @Leftovers (once I get a third)
Ability: Levitate
Evs: 252 SAtk/ 252 Spd/ 6 HP
Nature: Timid (-Atk, + Spd)
Shadow Ball
HP Fighting
Calm Mind
Substitute
I think Mismagius is a beast in UU, with two attacks, together, hit every type for a least neutral. Calm Mind is to bulk up my substitutes, and add to my SAtk.
Ability: Levitate
Evs: 252 SAtk/ 252 Spd/ 6 HP
Nature: Timid (-Atk, + Spd)
Shadow Ball
HP Fighting
Calm Mind
Substitute
I think Mismagius is a beast in UU, with two attacks, together, hit every type for a least neutral. Calm Mind is to bulk up my substitutes, and add to my SAtk.

Flygon @Choice Band
Ability: Levitate
Evs: 252 Atk/ 252 Spd/ 6 HP
Nature: Jolly
Dragon Claw
Earthquake
Stone Edge
U-Turn
Ah, good ol' Flygon, i've always loved this poke. Dragon Claw is used for STAB, and killing other dragons. Earthquake for the STAB and the huge BP. Stone Edge for coverage, and finally U-Turn to scout.
Ability: Levitate
Evs: 252 Atk/ 252 Spd/ 6 HP
Nature: Jolly
Dragon Claw
Earthquake
Stone Edge
U-Turn
Ah, good ol' Flygon, i've always loved this poke. Dragon Claw is used for STAB, and killing other dragons. Earthquake for the STAB and the huge BP. Stone Edge for coverage, and finally U-Turn to scout.
So, as you can see it's probably a bad team, so opinions, and criticism is appreciated, thanks.