Well lets just say you don't want Kael much to read this suggestion. I won't go into detail. lets just say Acheron gave him some serious stomachache.
Best move this Thread to the modmods & scenarioes subform? Perhaps Woodelf can do so? Better hurry?
more on toppic: He did so some time in the vanilla age of FFH2 and it was huge fun (imo

). No further changes to his AI/script needed. You just need to unchain him of his bonds and he is ready to rumble and has been tested and found good/bad more than once before.
Barbatos (the awesome unique Lich formerly guarding the broken sepulcher before explorable lairs by marnok got implemented into main FFH2 and he subsequently got removed) also for a brief time used Death 3 to cast Lichdom (thus turning him from an powerful immobile casting platform to an generic if heroic and extremely powerful archmage-level 3 Caster, with twincast + Extension 1&2 + Earth 3 + Death 3 and Summoning trait going on campaign for world domination.)
and thus free himself from the bounds of his prison so he could go around for a little stroll, to kick some serious AI and player butt, and chew some bubblegum.
Clever old piece of undead apprentice of death magic, turned Archmage turned Lich and cheating death again by using Lichdom a second time

...
Sadly he run out of bubblegum shortly after, lost his demeanor because of it and Kael found out and choose to punish him with the nerf-batton for his impoliteness...

(and ultimately by removing him from the mod for all but the rare random spawn of a powerful Lich from a lair.)
I miss these things. Oh sweet memories.
But I'm sure its easy enough to modmod both these things "back" in (and those players who like those things would sure appreciate to get their hands on something like this. While some parts of the general public might understandibly dislike it very much.). So leave our favorite team-lead his well earned peace of mind and not speak of it all that much in the main forums.