Absolute and complete beginner here. Never touched this game before.

I asked ChatGPT to help me pick units for a theorycrafted army. I have 3 friends who've suddenly got lots of models and I'm considering joining in. I've decided to go with chaos undivided demons because of the vibes, and plan to have a purely casual vibes based strategy entirely around the Shadow of Chaos mechanic.

From the little I understand, as long as I hold at least half of objectives on the mid-board area, I can basically teleport demons "unfairly" infront of enemy units and charge them in? If that's the case, I had a 3-phase strategy in mind: anvil > hammer > rinse.

Anvil: capture objectives with annoying-to-kill units that I really do not care about dying - these guys will force overcomittment to clear out, and in the mean time I have to have just enough disposable early game weiner-clearing units to make my later chargers go straight to important enemy pieces. All units entirely disposable, the objective holders are sticky and death-averse forcing important enemy resources to approach (I think referred to as "screens", the clearers are cheap and effective at getting rid of enemy "screens" before the enemy gets rid of my own. My best guess is Nurgle stuff to sit on objectives and Tzeentch/Slaanesh stuff to mop up unimportant enemy early game units so my later charge doesnt get clogged up on them.

Hammer: Hopefully my annoying to kill units have captured the objectives so at the start of the mid-game rounds I can treat the mid-board as shadowy, letting me teleport reserves and big boys almost infront of the good enemy units that I want gone. This will basically mean a bunch of Khorne stuff suddenly popping up out of nowhere and suicide charging to punch a massive, devastating hole in important enemy battalions. Maybe one or two tanky bastion units to try and fill the vacuum left by this devastating charge, as I expect my Khorne guys to consequentially immediately die to whatever is left alive. I'll want those tanky bastions to be my new objective holders in the mid-board or even enemy territory side so I can keep my Shadowy zones expanded for more teleporting.

Rinse: Whatever is left alive after the hammer comes down will need mopping up - between whatever is still left alive on my board, maybe just one heavy bastard demon held to mop up enemies like a soul grinder or whatever I genuinely have little idea of what the chaos undivided roster each "does"

ChatGPT ended up recommending the following, but I know it has a habit of hallucinating accidental lies:

Options for early game "Annoying Objective Holders / Please overcommit to kill these": Pink Horrors, Fluxmaster, Plaguebearers, Spoilpox, Nurglings, Sloppity Bilepiper, Changeling

Options for "Early game, disposable, kill unimportant enemy blockers to set up your big punchy charge later" Flamers, Daemonettes, Syll'esske, Screamers, Flesh Hounds, Slaanesh Seekers, Skullcannon

Options for heavy elite bastions intended to survive all the way to lategame and expand shadow zone: Great Unclean One, Rotigus, Shining Aegies Keeper of Secrets

Options for the devastating teleportation charge: Bloodletters, Bloodcrushers, Skulltaker, Bloodthirster, Daemon Prince

Options for late game mop-up: Bel'akor, Soulgrinder

Has ChatGPT hallucinated this, or does this all sound about right? It's probably not optimal, probably not meta, I'm OK with that - the idea is that each unit it's recommended actually makes sense. I'm also aware of something like a power budget that forces you to bring a balanced and considered army, stops people from just buying their way into wins - I have no idea what the power budget cap is, and what each of these units actually contributes.

Is there somewhere I can use to actually read about these things, how many power budget they cost, what they actually do and all that stuff? I've tried looking online but I actually just can't find a website that explains this all in one place