I decided to use the Spinda/Magikarp/Sunkern/Delibird/Farfetch'd/Unown team to see what I could find on the very bottom of the ladder:
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(Asuna is a Sylveon)
For beginners trying to ladder, I'd let this go. Not many people remember about Pixilate Hyper Voice especially those that don't go to sites like this one that deal with strategy. I would have just reminded him about that in hopes that he changes it during the next time. At least it's not Dazzling Gleam though. (Plus he could have been using Cute Charm, which is the superior option if you aren't running Pixilate Hyper Voice or trying to nuke with a Pixlitate Hyper Beam. Though that's more relevant to cartridge teams where Hyper Voice is annoying to get with a good IV'd Eevee...)
Now, mentioning cartridge battles... I routinely battle a friend of mine who really doesn't care for competitive battling. Most of the time I can seemingly justify her choices but a few others I don't know... I'm going to list the few that I know are not because she's using her in game team (Like her Samurott she transferred over that she sometimes uses with Surf, Waterfall, and Hydro Cannon and her Fly Charizard-X she used in her first battle with me)
- Aerial Ace Deoxys-N (I can be fine with Deoxys-N if she didn't know where the stones are, but Aerial Ace? She also attacked me with Dark Pulse and Psycho Boost (but that missed))
- Physical Keldeo (I only saw it having Sacred Sword and Stone Edge (which actually hit). I wanted to tell her about Secret Sword but she had to leave soon after the battle)
- Surf/Dragon Claw/Earthquake/Judgement Arceus-Fairy (Since I only want to criticize her strategies as a casual battler, my only complaint with her moveset is with Dragon Claw...it really doesn't hit much extra than her other attacks do.)
- Ancient Power Kyurem-Regular (Looking at when it learns it, she had to use a Heart Scale for it. Its other moves are Ice Beam, Dragon Pulse, and Draco Meteor. On the other hand, thanks to Hax, she got two stat boosts in a row in one fight with me allowing her to sweep most of my team until toxic took care of it. I would have probably used either Hyper Voice, Focus Blast, or, since we're in a metagame with Fairies now, Flash Cannon)
- Something that isn't particularly moveset fault, but she keeps asking for a battle without having autolevel on...and she is clearly still in the process of leveling up the Mew I gave her. It's only level 49, but the rest of her Pokemon (and most of mine) are level 100.
I don't want to fault her too much since her comments about EVing (a particular hate for them) suggests she's doing it for fun which I totally respect. However, these are just some egregious errors I've seen that even general ideas of coverage and looking at her Pokemon's stats would cause her to do something different.
On the other hand, her Arceus can ONLY be taken down by my Politoed (the Gen V defensive set) I've been using on my haphazardly thrown together all-shiny team (using shinies I gathered in trades during Gen IV and V). Arceus is fast enough that it can typically one-shot everything else I have aside from Rotom (which is usually 2HKO'd, but can't KO it back in time not even with a lucky crit). Of course that's partly due to the fact that I have Hydreigon and Garchomp in the same fight (and to make matters worse, they're both physical attackers because the shiny Hydreigon was built for physical attacking but the power difference is very noticiable). I know I'm complaining about ubers when I have a team without any, but I figured this is the most interesting way to battle her.