Is this GeoXern set viable in AG?

Question

NatDex AG
Here's the Set:
Xerneas @ Power Herb
Ability: Fairy Aura
EVs: 168 HP / 252 SpA / 88 Spe
Modest Nature
- Close Combat
- Moonblast
- Thunder
- Geomancy

CC is For the annoying Chansey.

Here's the calc:

0- Atk Xerneas Close Combat vs. 4 HP / 252 Def Eviolite Chansey: 282-334 (43.9 - 52%) -- 14.1% chance to 2HKO

0- Atk Xerneas Close Combat vs. 4 HP / 252 Def Eviolite Chansey: 282-334 (43.9 - 52%) -- guaranteed 2HKO after Stealth Rock

I Weighed CC and Psyshock and concluded that CC is better because after setting up Geomancy and Chansey is in, You will find yourself again walled by Chansey after a few turns. Here's the Calc:

+2 252+ SpA Xerneas Psyshock vs. 4 HP / 252 Def Eviolite Chansey: 279-329 (43.4 - 51.2%) -- 5.9% chance to 2HKO
+2 252+ SpA Xerneas Psyshock vs. 4 HP / 252 Def Eviolite Chansey: 279-329 (43.4 - 51.2%) -- 98.8% chance to 2HKO after Stealth Rock

I find the second Calc interesting, but Its almost next to Impossible that they would not switch in Chansey when you send out Xerneas, And After they use Confide...

+1 252+ SpA Xerneas Psyshock vs. 4 HP / 252 Def Eviolite Chansey: 209-247 (32.5 - 38.4%) -- guaranteed 2HKO after Stealth Rock

Thoughts?
Thanks for the response, Have a Nice Day.

Comments

I changed the tag to national Dex ag, since you said it was an ag moveset. Changed the title to be a little less opinionated.

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Thanks Max-- i didn't know how to fix it. Removed flag

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Oh, didn't mean that. My apologies.

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CC seems like a weird choice on Xerneas, especially with that set. The defense drops from CC contradict the whole point of running EVs on it, making it really easy to revenge kill with priority. Even if you do wanna run CC, you should change the nature to one which lowers either of the defenses and invest enough EVs into attack to outdamage Soft Boiled recovery -- that is, go for a hardcore offensive set (although I recommend you do not do this).

Its better to make a team around Geomancy Xerneas rather than make it the one-man-army, and provide as much team support as possible. You can alter a few things like running HP[Fire] for Ferrothorn or HP[Rock] for Ho-oh if your team takes care of whatever coverage you're missing out on (for example, if you run HP[Fire] then your team should take down Ho-oh before Neas comes in) but the whole point of a late game special sweeper shouldn't change.
If you're having trouble with Chansey, then its better to include mons in your teams which can take care of it. Marshadow and Tyranitar with Pursuit seem like good teammates (do note that I only play USUM AG, so I have no idea about their viability in NatDex AG, but you'll get the point I'm tryna make) since they can continuously chip it away and if you can pressure the opponents enough to prevent Soft Boiled, then its ggs wp.
Dugtrio also surprisingly makes a nice core with Neas (at least in USUM AG), taking care of 3 of the 4 best Neas checks - SpD NDM, Primal Groundon and Arceus-Poison. (https://pokepast.es/1f1d8b3abd114980 - A team I made with that core which was really good, USUM AG.)

Tl;dr
Its better to make a team around GeoNeas taking care of its checks then to make an all around Neas set.

Edit: Should I turn this into an answer?

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@Aaaaaaaaa Dugtrio doesn't make a surprisingly nice core with anything, it's pretty niche and pairs loosely with some common Pokémon. Its overreliance on Sash/Groundium-Z makes it a pretty niche trapper, as I've said before on your wall. Team's nice but I want to comment something, will wall you.

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@Aaaaaaaaa Thanks alot too, That helped as well

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@Psy-Beam You're welcome! Whoops, I missed your comment cause there's lately been a LOT of activity around here, lol.

Also, in my previous comment I meant to say "running HP EVs on it." I couldn't seem to English properly that day haha.

Answer 1

It's not worth going for Close Combat usually

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You'll usually be going for Moonblast + Thunder + HP [Fire] or [Ground] as your four moves. If you run Close Combat, it would compromise Xerneas's overall output against some more common foes such as Kyogre-Primal and all, and Chansey is pretty rare in NatDex AG anyways. Xerneas is a meta-shaping Pokémon with its Geomancy set, you can't trade its sheer SpA power just to hit one single foe, which isn't even that good right now! If Chansey gives you problems, you can pair the Xerneas with a Rayquaza-Mega, and a double to the Ray-M when you expect a Chansey switchin can make things ugly in seconds. You need the Hidden Power [Fire] or [Ground] as you need to overpower common things like Necrozma-DM, Zacian-C and Ferrothorn.
Apparently this was a set back in OR/AS, where Life Orb All-Out Attacker Xerneas was pretty heat. It usually ran Moonblast STAB, Aromatherapy, Rock Slide or Thunder and Close Combat (or Focus Blast, but rarely). It's far better over there as there're not many Steel-types which can come for free on you, and you're actually doing some damage to your most common checks in Chansey, Kyogre-Primal, Klefki and Ho-Oh. But sadly, the set's out of date and is totally unviable in NatDex AG.

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So in the end, I'll suggest that you run the usually Geomancy set and pair it with something that can take care of the blobs if they are giving you issues, as they're pretty rare anyways.
Hope it helped!

Comments

Oh, I see. Yeah, Mixed GeoXern sounds a bit weird, especially if its the coverage is just for a certain mon.
But Chansey definitely annoys my whole team, and since most teams running Chansey are almost always Stall, Its often partnered with Quag/Lugia in Stall and to compensate for its weakness in the physical spectrum.
Imo its a good lure to Chansey, expecting a full Special attacking Xern. Thunder alongside MB and CC, hits every1 in the tier for at least neutral damage, with a few exceptions. This is just my opinion though, Ig the set is just bad overall. Thanks a lot and Have a good Day, Now i know what to do :>

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Stall isn't very much consistent in NDAG right now. Not every Stall runs a Chansey; Blissey is usually a better option, but yeah the blobs are the same.
Quagsire can't do anything to Rayquaza-M lol. Ascent 2HKO's it pretty easily. Lugia is the issue, which can be dealt with other teammates if you're running BO/HO. If Balance, there're plenty of ways to overcome Lugia and Stall as a whole.
You're welcome, and good day to you too!!