'Before I use my new system ability on Morgan, let's see whether there are any good talents and skills I can use from my new intelligent undead beasts.'
if you think about it as he kills the slaves for souls he will also be able to replenish his bones and then some. he would be able to keep buying slaves indefinitely.
Quinn could use the gauntlet with the deamon tier necklace to make higher spiked dalki. He could have them constantly get wounded and then steal energy to heal them.