Please apologies my late response.
I’m working on my Dark Sun conversion again, a setting where Essence users are hunted as their magic is fueled by life, the gods are either dead or have abandoned the planet and Psionic powers are common. The planet is a barren wasteland caused by the wanton use of Essence magic.
Instead of gods the Prime elements offer powers to those willing to worship them and bring back their presence to the dustball. Each cleric worships a single elemental force and tries to further that element’s agenda on the planet.
It’s still very much WIP and I have made some changes since the initial attempt.
I don’t have access to Elemental Companion any longer but even back then I did not want to use it as I found it very one dimensional in terms of lists iirc.
Below are the lists I thought so to set for the clerics. Yes, that means there’ll be the possibility to have a character flinging fireballs and healing.
Cleric base lists:
Air
Air Forms (RC VII)
Elemental Summons (RC II)
Wind Law (SL)
Earth
Earth Forms (RC VII)
Earth Law (SL)
Earth Ways (can’t remember where I found this more than a decade ago)
Elemental Summons (RC II)
Fire
Elemental Summons (RC II)
Fire Forms (RC VII)
Fire Law (SL)
Water
Elemental Summons (RC II)
Liquid Alteration (SL)
Water Forms (RC VII)
Water Law (SL)
At first I thought to abolish all Essence and Mentalism users, pool all lists and then have a generalist profession for those two realms. Now though I’m more in the field of leaving all professions as specialists and then have a generalist as well with access to all base lists but at a cost, the reason for this thread in the first place.
As for that cost, Spell Law already includes optional rules for costs to learn others’ base lists. I may have read that table wrong initially as maybe my costs would be too low for the Magician’s lists for all other Essence users. Maybe Hybrid costs in this area would be better meaning 4/* for A picks (1-5 lvl) 5/* for C picks (6-10) however maybe just 5/* to keep it simple.
Still, it leaves me with the issue of the generalist. Still thinking about that one.
With the abolishment of Hybrid users I had to use users here and there and even change realms for other professions.
Anyways everything is in this doc:
https://docs.google.com/document/d/1o3S2cIUswlxV3P0JrCh8WI8JvaQI1Ev1pdqa8nvCvno/edit