Wall for -RisingManectric- (page 52)

Mega

Nov 20, 2021 by CinderBlast

I think they’re cool, if it won NBT I’d say it’s good for the thread. The sets look pretty cool to me, mixed sets are pretty neat.

Nov 19, 2021 by BottomlessSea

And yeah Lillie OP ;)

Nov 19, 2021 by Tensa Zangetsu

There's no harm in learning a new format, as the knowledge of one tier is somewhat transferrable to other, so even if you main slam tiers doesn't mean you can't play or learn about OU, AG, Ubers or even OM formats, etc.

As for viable archetypes, I don't play Nat Dex AG much often now so I don't know about the good stuff, but you should probably take a look at the Nat Dex AG matches in the ongoing NDPL (Nat Dex Premier League). As for Gen 8 AG, some good archetypes are:
Calyrex-Shadow + Something that Yveltal dislikes, like DD Zygarde-C, Zacian-C, etc.
Phy Def / SpD Ferrothorn + Expert Belt / Metronome Eternatus

This is probably the heatest defensive core. Eternatus is a good Ho-Oh switchin, something that Ferrothorn hates. Ferrothorn deals with NDM, Zekrom with ease which can trouble Eternatus. These two are probably the easiest ones to build around, you can try building around some more stuff as you learn about the meta more :)

Nov 19, 2021 by Tensa Zangetsu

Nothing to say you can't, though it's maybe not a great answer to a question asking for a "good" moveset.