My first inclination was to make Leone Quital into Leone d'Cannith, but I changed it to a different race and backstory:
Leone Toldrath
Dwarf steelshaper from the Mror Holds. He’s an early discoverer of the Realm Below in the Mror Holds discovering the ancient steelshaping techniques of Sol Udar: The Realm Below. When he combined this technique with his aberrant dragonmark abilities, this resulted in incredible powerful effects. This discovery made him a rich person. He became a member of the Aurum and is a current member of the shadow cabinet. His aberrant dragonmark is hidden under his clothing and not generally known to the public.
I thought this gave a better explanation of his incredible powers.
Hmm, yeah that makes a lot of sense. I'm not sure what I'm going to do with the Cannith stuff. I had set it up as potentially part of a power struggle within the Cannith West branch, and at the end, once the Duke killed himself in jail, I had them vacate the building they were doing business in in Passage. The scandal was all the opportunity House Orien needed to eject them essentially from the city.
I'm not really familiar with PF2, so it's difficult to grasp the effects of the activations. Looking at the description I assume you changed Egal the Shimmering to one of the Rakshasha leaders of the Lords of Dust? Did you make him an ally of one of the known overlords?
So I haven't really decided exactly. Eldrantulku is an overlord and he works through Rakshasa, and there was an old Dragon article about Duke Janar ir'Edar that had him involved with a cult connected to the Lords of Dust, so I figured I throw stuff out in that direction and then figure it out later (sometimes I just give clues and such out like that and see what my players end up caring about before I figure out the fine details).
As for what the PF2 stuff means, basically the first activation allows them to cast the spell Dimensional Anchor which essentially dispels efforts to teleport a target from one plane to another. For the wielder, any attempt to teleport them would be dispelled (essentially the wand would make a roll against the DC of the spellcaster trying to teleport them). That stuff was to try to replicate the original ability of the wand. I added the second activation because Eldrantulku encourages paranoia and discord -- basically it allows a once per day casting of the spell Paranoia after a critical hit with a spell attack. That spell causes someone to temporarily turn on their allies if they fail a saving throw.
