One strategy I think is actually viable for the first time ever is hail. Actual hail, not aurora veil teams masquerading as hail. The removal of hidden power, wider distribution for weather ball, and addition of dracozolt make the joke of weather teams actually worth using.
The Setters- Set up your weather. Desperately try to squeeze as much utility as possible from these very bad pokemon.
Aurorus @ Icy Rock
Ability: Snow Warning
EVs: 252 HP / 252 SpA / 4 SpD or 252SpA / 252 Spe / 4 HP
Modest Nature or Timid
IVs: 0 Atk
- Aurora Veil/Hail
- Blizzard
- Stealth Rock
- Earth Power/Ancient Power/Rock Polish/Hail

This setter has a lot of weaknesses and no priority which makes me like it less than the others. The typing is seriously so bad you feel like you can never bring it in without a teleport or off of a sack. However, it's main advantage is compressing rocks and a hail setter on one team, but I often find it impossible to get up rocks with this thing as most walls even beat you down fairly quickly. Worse, taking damage on a setter weak to rocks with no recovery is suboptimal. It does have rock polish to clean up late in the game but overall I think it is the worst setter.
Vanilluxe @ Icy Rock
Ability: Snow Warning
EVs: 4 Atk / 252 SpA / 252 Spe
Hasty Nature
- Autotomize/AuroraVeil/Hail
- Blizzard
- Freeze-Dry
- Ice Shard/Explosion

The ice cream is the most offensive setter with the strongest freeze dry and blizzard, along with priority in ice shard. Now it has veil as well as explosion to keep it up and get a free switch. Still not my favorite but better than aurorus.
Ninetales-Alola @ Icy Rock
Ability: Snow Warning
EVs: 252 HP / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Aurora Veil
- Freeze-Dry
- Hypnosis/Hail/Moonblast
- Encore/Hail/Moonblast

Ninetails is a fantastic setter with strong moonblasts, freeze drys, and blizzards, but no priority. That said, utility from veil, hypnosis, and encore can make up for this. Typing with actual resistances means you can actually bring it in on things to get hail up without taking huge damage.
Abomasnow @ Icy Rock
Ability: Snow Warning
EVs: 248 HP / 252 Atk / 4 SpDef
Brave Nature or Adamant
- Ice Shard
- Leech Seed/Earthquake/Blizzard/Icicle Spear
- Giga Drain/Seedbomb/Woodhammer
- Protect/Aurora Veil/Hail/Swords Dance

This is in my opinion the best setter. Leech on the switch gives you some recovery and alongside hail gives nice residual. Powerful ice shards help with a lot of the sweepers running around that are either weak to ice like zygarde, latios, and dragonite, or just plain frail like mosa. The typing, while not great overall still offers some resists that can be used to get up hail. It has veil now which, even though only 5 turns on a hail team is still nice for the setup to abuse.
The Abusers- Sweepers that abuse the hail with weather ball or slush rush.
Arctozolt @ Life Orb
Ability: Slush Rush
EVs: 4 HP / 252 Atk / 252 Spe
Jolly Nature
- Freeze-Dry
- Icicle Spear
- Bolt Beak
- Substitute/Charge/Low Kick

This guy is the reason you run hail, though it only hits 458 speed with +speed nature which leaves it outsped by fast scarfers like mosa, pult, and kart. These downsides are mitigated by stab bolt+beam and freeze-dry, leaving it walled by only a few pokemon. Bolt beak is ridiculous and ice move + freeze-dry covers all resists or immunities (except magnezone). It needs a life orb however, is weak to rocks, and has to chose between low kick for ferro, sub to ease predictions and prevent fast scarfers (except pult) from revenge killing it, or charge for stronger beaks if you're a man and predict the switch. Often times you can just send this out and hit bolt beak like it delivers a shot of heroin and get a couple of kills.
Zapdos @ Heavy-Duty Boots
Ability: Static
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Roost/Agility/Volt Switch
- Hurricane
- Weather Ball
- Thunderbolt/Volt Switch/Heatwave

Weatherball gives offensive zap powerful ice coverage to go along with it's already strong stabs which shrinks the pools of ground types that can switch in and eat its attacks even smaller.
Thundurus-Therian (M) @ Heavy-Duty Boots
Ability: Volt Absorb
EVs: 252 SpA / 4 SpD / 252 Spe
Modest Nature
IVs: 0 Atk
- Thunderbolt
- Weather Ball
- Focus Blast
- Agility/Nasty Plot

My favorite weather ball abuser. Hits super hard, gives an electric immunity, and after an agility, can sweep most unprepared teams. Nasty plot can be run to wallbreak instead, though I find thundurus is not often lacking for power. I didn't have any success with double dance.
Raikou @ Leftovers
Ability: Pressure
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Agility/Calm Mind
- Thunderbolt
- Weather Ball
- Aura Sphere

Usually ends up being a budget thundurus but has a speed advantage and better bulk which can sometimes be nice. Calm mind does give it another tool that thundurus doesn't but it also has aura sphere instead of focus blast which makes its coverage much weaker.
(can be any standard landorus set just slot on weather ball instead of edge)

Gives landorus the ice coverage it sorely misses for grasses like rilla or bulky grounds like landorus or zygarde. Never a sweeper but still appreciates the ice move.
Supporters- These pokemon don't abuse hail but should make the defensive backbone, offer free switches, and or put up hazards to help an otherwise one-dimensional archetype not be a match-up fish. (These guys just run normal sets and are well known in OU so I won't include them)

Everyone knows how good regen+teleport+future sight is and dracozolt, like many other sweepers, appreciates the free switch and the future sight giving kos on would-be walls, mainly buzzwole. The free switch is also nice for your weather setters who all have a hard time coming in while the typing lets slowbro wall many things that would otherwise 6-0 a team of ice types. I really think this is a mandatory pick.

Of course the pink mon is super good on this team because it's good on basically every team. Wish+port is great for both your setters and abusers, while rocks are nice for chip and the typing lets you not lose to urshifu and other strong fighting types.

Like clef, heatran is always good on everything and although hail nulifying the leftovers is really annoying, the synergy between magma storm and hail residual is great. Heatran also offers rocks and a sturdy fire immunity to a team style that wants it bad.

I've played around with this one a bit, but hazard control is a must on a team with at least two ice types, both of which can't afford to run boots. Basically, fill in any defogger.
Dishonorable Mentions- Mons I think suck on hail but people immediately try to abuse

This mon really clashes with arctozolt, which is bad when it can be described as a bad arctozolt. The water type just doesn't work well offensively with ice and makes you super reliant on uninvested freeze-drys to attempt to breakthrough checks. Unfortunately, those freeze-drys don't do much to hurt fini or pex. You can't afford to run both zolt and vish which unfortunately makes this guy a fish out of water (please clap).

The typing looks nice until you realize the defensive synergy between steel and ice is bad, and the offensive synergy is just as bad. With as poor of an attack stat as this guy has it needs some way to beat bulky waters but it often can't, even at +2. This one is admittedly less bad than the fish but still not worth using over arctozolt imo. Maybe someone can make me eat my words.
Any snowcloak/icebody """
abuser""" - You might be tempted to run any of these guys because their abilities directly work with hail, but you end up just stacking ice types for either very little payoff or a 25% chance for a nice dodge that might not have even mattered. I don't really like any of these for hail.
My Team Paste
To quote the Flying Press "Get out there!". I'm in the 1700s with this team and it still can get way better so I think hail could really be viable this gen.
https://pokepast.es/4cd5ce51a92eef43
this isn't an rmt but if you have make any modifications that work for this team let me know, or don't idc.
edit: added correct pokepaste