What is a good moveset for Diancie?

Question

If you have a good competitive moveset for Diancie, post an answer below and upvote the best ones. Movesets for its pre-evolutions, if any, can also be shared on this thread.

Be sure to include full set details in your post, e.g. items, abilities, natures and EVs. Some detail, including the intended game mode for your set, is also appreciated. Access the full list of guidelines here.

Diancie Pokédex and learnset for reference.

Comments

Haha Fizz, what a legend xD

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why the downvote?

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ikr.. (Filler)

First time I've ever seen a move set question in the negative!

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Back when I used to do the moveset questions, some of them would be in the negative.

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Wow, really?

(Idk what's the biggest shock: Knowing that moveset questions had down votes, or that trachy answered xD)

Answer 1

Gen 8 NU

Diancie @ Leftovers
Ability: Clear Body
EVs: 252 HP / 100 SpD / 156 Spe
Careful Nature
- Diamond Storm
- Earth Power
- Heal Bell
- Stealth Rock / Body Press

Usually Diancie runs Stealth Rock, Diamond Storm, Body Press, and Moonblast / Heal Bell. That means Diancie is walled by one of the newest Pokemon in the tier, Doublade. However, with Earth Power, you can 2HKO Doublade. Diamond Storm is for rock STAB and allows you to get a +2 defense boost. Heal Bell provides support for you and your teammates. Stealth Rock helps chip opposing Pokémon coming in. Body Press can be used to take advantage of your defense boosts. The EV spread allows you to have a slightly better matchup against Glastier and Vaporeon while still allowing you to check non Hydro Pump Exploud.

Answer 2

Gen 8 NU

Diancie @ Leftovers
Ability: Clear Body
EVs: 252 HP / 40 Def / 16 SpA / 200 Spe
Bold Nature
IVs: 0 Atk
- Stealth Rock
- Power Gem
- Moonblast
- Heal Bell

A physically defensive Stealth Rock set that uses Power Gem over Diamond Storm. Stealth Rock is setting up rocks which helps offensive Pokemon on your team. Power Gem is used over Diamond Storm on this set because the damage Diamond Storm does to Xatu can simply be healed by Roost. Power Gem also has a higher BP, meaning Xatu can't PP stall out your rock STAB, which is what it usually does to Diancie's Diamond Storm. Moonblast is for fairy STAB. Heal Bell provides support to the team by curing status condition.

Answer 3

Gen 6 RU Dual Screen Setter

ooh shiny (Diancie) @ Light Clay
Ability: Clear Body
EVs: 252 HP / 4 SpA / 252 SpD
Sassy Nature
- Diamond Storm
- Moonblast
- Reflect
- Light Screen

To start, I am not doing anything with this shiny rock’s speed. Why try to improve the way a gemstone rolls? Light Clay and Dual Screens are a pretty rare occurrence on a Diancie, but I’ll make it work. The high HP and SpD let it live more hits, while a 50% chance Def boost from Diamond Storm lets me take it easy on the Def EVs. A pretty fun strategy to lead with, but beware of opposing steel types in RU like Cobalion and Eviolite Doublade.

Answer 4

Gen 9

Diancie @ Leftovers
Ability: Clear Body
Tera Type: Grass / Water
EVs: 248 HP / 252 Def / 8 Atk
Relaxed Nature
- Diamond Storm
- Draining Kiss
- Calm Mind
- Body Press

Honestly this is a strange set but who knows. The post-home meta is still fresh, and maybe this will be the straw that breaks NU's back.

Diancie was kind of buffed this generation, merely by the addition of tera. Tera is a simple but fundamental change which can breathe new life into Pokemon like Galarian Articuno and Floatzel, or push them way over the edge, like in the case of Volcarona, Annihilape, and Regieleki. In Diancie's case, Tera Grass allows Diancie to now resist Water, Grass, and Ground and be neutral to Steel. It has a lot of downsides for sure, as you gain notable weaknesses to U-turn, Magma Storm, Sludge Bomb, Hurricane etc, but with Diancie's great defenses, you can tera and easily live the resisted hit, and from there you can kinda just snowball. Tera Water is another option to give Diancie a Steel and Water resistance, keeping the Grass weakness but giving it a way better overall defensive type. Idk, i've never used this set and I thought it sounded cool in my head. Maybe blunder could do a live with this...

Diamond Storm can let you boost up like 42.5% of the time, then with that you can Body Press to damage Steels with your big defenses. Calm Mind can allow you to boost your Special Defense and make your Draining Kiss sting more. I guess with this set Diancie becomes a tank that can boost up on both defense and special defense and have calm mind boosted STAB recovery in Draining Kiss. I know this is probably just lunacy but maybe this could actually work if Gholdengo and Corviknight just magically disappeared.

Answer 5

Diancie @ Diancite
Clear Body -> Magic Bounce
EVs: 252 SAtk / 128 SDef / 128 Def
Nature: Quiet
- Moonblast: STAB
- Diamond Storm: STAB
- Trick Room: Speed Swap
- Explosion: Sacrifice

Answer 6

Gen 9 NU Demon Set

Diancie @ Leftovers
Ability: Clear Body
Tera Type: Steel
EVs: 252 HP / 4 Def / 252 SpD or 252 HP / 168 SpD / 88 Spe
Sassy / Calm Nature
- Calm Mind
- Diamond Storm / Iron Defense
- Body Press / Stored Power
- Draining Kiss

An updated(?) version of the Demon set themodernage posted. This set is to be used in Gen 9 NU. Diamond Storm is usually used over Iron Defense since the combination of Diamond Storm + Body Press doesn't let the opponent immediately know you're the demon set, and by the time they do find out, Diancie has most likely boosted up to the point opposing Pokemon can't break past it as easily. Diamond Storm also lets Diancie hit Chandelure super effectively, which is really useful to get rid of. Iron Defense can be used instead with Stored Power of Body Press to take advantage of all of Diancie's boosts. Body Press takes advantage of Diancie's boosted Defense Stat and lets it hit Steel-types such Registeel, Copperajah, and Duraludon. Draining Kiss is used for the Fairy STAB since it lets Diancie recover HP, with its low HP stat allowing Diancie to recover more HP with Draining Kiss. Tera Steel is used to allow Diancie to have an immunity to Toxic.

The EV spread and Nature you use depends on if you use Diamond Storm + Body Press or Iron Defense + Stored Power. If you use Diamond Storm + Body Press, use Sassy Nature and the 252 HP / 4 Def / 252 SpD EV spread. If you use Iron Defense + Stored Power, use Calm Nature with 252 HP / 168 SpD / 88 Spe. The EV spread with the Speed EVs allow Diancie to outspeed Sylveon that aren't using any Speed EVs.