Hey, I'm playing a warlock and I have a captured monster 'Bind Demon'. If I reset my stats with Akara, will the captured monster disappear?

Won't disappear. It will however die and leave a corpse behind.

High carbon footprint. Warlocks should be taxed CO2 emissions.

can a necro revive it then go hostile and rebind it from them?

Nice, I like it.

I'm asking because, as you know, resetting stats also resets the skill tree :). So it won't disappear, right?

As explained, it will die. Its corpse will remain as a monument to your hubris in violating the bans instituted after the vizjerai wars, and you should consider yourself lucky it didn't vivisect you and turn your living flesh into its homunculi spawn

You can find a tome that gives +bind demon, make sure you have enough stats to wear this even when reset (use charms). Then when you akara, you’ll still have the skill

this doesn't work. i tried. it might work if you have demon mastery as well?

Why you don’t need demon mastery for bind demon