Without going into homebrew or Wish territory (as the former is table-dependent and the latter is DM-dependent), Finger of Death creates an undead that is permanently under your command.
Being a 6th level spell, a 20th level caster can cast it six times per day (by spending all their higher level slots casting that spell exclusively), which means that, provided you have a steady supply of humanoids to cast the spell on, you could have six undeads per day, or 180 per month. In a year, that’s 2190 undeads, which is itself a small army. Give it some time, and you’d have a small country following your commands.
At that point there are only two problems: time itself (which can be solved with features that increase your lifespan, such as Boon of Immortality), and other people trying to stop you (which can be solved by using your spell slots to make them regret their decision).
I did list that, but doing the math is helpful. This is less useful for labor, but you could use executions or assisted suicide. If aging in their universe is anything like ours, I imagine there’d be no shortage of good people who’d rather go to heaven and donate their money to charity than spend it supporting themselves as they slowly and painfully die, but even in 3.5 where there were downsides to old age, the worst it got was +3 wisdom and -6 strength. Commoner was a class, so they’d roll ability scores and someone could have a Strength of 4, but they could also level up and improve their ability scores.
The other problem is that they’re making zombies, not skeletons, and there’s no rule that zombies decay into skeletons or anything like that. Though I suppose if we’re playing RAW, there’s no rule that zombies decay at all or are unsanitary.
Hmm, if you store the zombies in differen environs maybe they will “poke-evolve” into new forms? A zombie in ordinary conditions turn into a skeleton and if its stored in salt or a smoke hut it becomes a mummy (smoke house can also add extra abilites, add liquid smoke for STR bonus, juniper for that wild +DEX or sandalwood for a bit of CHA). Store it as a medical school teaching aid and it will develop an INT score, and if its an exhibition in the museum or library it can be WIS
Without going into homebrew or Wish territory (as the former is table-dependent and the latter is DM-dependent), Finger of Death creates an undead that is permanently under your command.
Being a 6th level spell, a 20th level caster can cast it six times per day (by spending all their higher level slots casting that spell exclusively), which means that, provided you have a steady supply of humanoids to cast the spell on, you could have six undeads per day, or 180 per month. In a year, that’s 2190 undeads, which is itself a small army. Give it some time, and you’d have a small country following your commands.
At that point there are only two problems: time itself (which can be solved with features that increase your lifespan, such as Boon of Immortality), and other people trying to stop you (which can be solved by using your spell slots to make them regret their decision).
I did list that, but doing the math is helpful. This is less useful for labor, but you could use executions or assisted suicide. If aging in their universe is anything like ours, I imagine there’d be no shortage of good people who’d rather go to heaven and donate their money to charity than spend it supporting themselves as they slowly and painfully die, but even in 3.5 where there were downsides to old age, the worst it got was +3 wisdom and -6 strength. Commoner was a class, so they’d roll ability scores and someone could have a Strength of 4, but they could also level up and improve their ability scores.
The other problem is that they’re making zombies, not skeletons, and there’s no rule that zombies decay into skeletons or anything like that. Though I suppose if we’re playing RAW, there’s no rule that zombies decay at all or are unsanitary.
Hmm, if you store the zombies in differen environs maybe they will “poke-evolve” into new forms? A zombie in ordinary conditions turn into a skeleton and if its stored in salt or a smoke hut it becomes a mummy (smoke house can also add extra abilites, add liquid smoke for STR bonus, juniper for that wild +DEX or sandalwood for a bit of CHA). Store it as a medical school teaching aid and it will develop an INT score, and if its an exhibition in the museum or library it can be WIS
Then again, why bother being a powerful wizard if you still need to work raising undead on weekends and bank holidays?