Thomas Seitz wrote:
...if Thanos arrives and asks "Who will join me in bring death to the universe?"
Sure, yeah. Happy to, big guy. I just gotta pick the kids up at Gymboree and swing by the dry cleaners first. Mind if we grab take-out on the way? I know this great poke bowl place. It's imitation pokemon meat, but I swear you'll never be able to tell the difference. Wait, is it Tuesday? Crap, I totally spaced. Lillian's got her book club, so I need to be at home with the rug rats. What does your next week look like? Tell you what, just shoot me a text and we can sync our Google calendars and bring this death thing to the universe. Man, life used to be so much simpler in necrocollege...
In a cosmos with an afterlife this is not, strictly speaking, true...
I've really got to fire my taxidermist...
I'm sure there have been a great number of fantasy creatures that have been driven to extinction over time. It's just there's always wizards/gods out there trying to make a better Owlbear.
Like my prolls™. Part pig, part troll, we can feed a village for the price of a single magically hybridized animal. Prolls. The food of the future... today!
Horror Adventures has a 3rd level spell called appearance of life that makes undead creatures of Medium size or smaller appear as if they were living humanoid creatures. It lasts 10 minutes/level. It's not great for walking around the city all day, but if you need an hour or two of milling around with minions, it'll do.
Eventually it can be made permanent via permanency, but that doesn't happen till 12th level and costs 10,000 gp.
If they're intelligent undead, consider outfitting them with hats of disguise. They'll still have to look like undead, but you could have them pick a kind of undead that appear pretty much living.
At higher levels you can use the seeming spell to disguise even unintelligent undead as less objectionable undead. And at even higher levels veil will make them look like anything you want.
You can also go the mundane route (which has the advantage of not being penetrated by true seeing). I would say the Disguise check probably has at least a -4 penalty (being a different race and "age category" if you count "dead" as a fourth age category), though I could see it going as high as -10. That would be a GM call. Still, if your Disguise skill is high enough, you should be able to thwart most casual Perception checks and people will only notice if you do something to call attention to the creatures.
1. A necromancer, to animate the corpses of those the party kills.