This one’s gonna be a LOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOONG suggestion so bear with me
Probably a secret boss sort of deal in the dark sea or just a high level bounty but he drops a new weapon (either mage or spirit thing since arcanium weapons SUCKED and spirits need more stuff to fight with anyways)
“Staff of thaumaturgy”
'A branch off a now extinct species of tree, adorned with a musgravite, it was cursed by Hades during the age before magic, allowing the user to call upon the dead using their intent and [SPIRIT/MAGIC] energy, it has long changed hands hundreds and thousands of times through blood and war alone. Its previous owner was Hearth, a man seeking vengeance across the [WHATEVER SEA]."
Anywho it works pretty much like the one from AA/AR, you summon NPCS you have killed, and they fight for you with only 35% of their max health, you cannot summon bosses unless they were rival bounties.
(Maybe this can also count a FEW minibosses that don’t use lost magics, like evander or the crone.)
(This also probably has its own GUI to pick previously killed NPCs across servers incase you have a favorite NPC on that slot, like your rival or something. This does not follow you across other slots though.)
While summoned, they will still use their original attacks, likely also weakened some.
While attacking, they no longer say their original move names. (EG: “Tempest! Burning cascade! Astrapikis!” etc.) instead replaced by various groans and roars, their dialogue switched out for things such as “RRAGH!! RhHRRHG.. GRRORRH!!”.
You can have only 5 NPCs out at once, and only two can be bosses.
When an NPC is killed, you take a hit to your stamina and massive hit to magic energy, if your energy ever reaches 150 or lower, your summoned NPCs will start rapidly taking damage, and sometimes try to attack you. the damage and chance increasing up to 100% as your energy gets lower. Only stopping when it’s back above this threshold.
Killed NPCs also have a server lock, meaning they can never be re-summoned unless you join a different server.