Late Game Magic Research and Item Creation

[Verjigorm]

At early to mid-game you should be thinking about hoarding clams/fever fetishes, etc.
Late game, you can make a nice little group of Astrologers to cast Mind Hunt--most of them will need a skullcap or a crystal coin to cast it. They can also cast Enslave Mind.

Make sure you've got some Stone Spheres or Eyes of God (if someone wants to waste gems with Fates of Oedipus, let 'em, you've got priestesses).

Cast WISH a lot.......

Try summoning lots angels (for some fire or air magic), ether lords (for some death magic), abominations (very nice), golems (in communion for Astral Tempest), etc...

Form a communion (preferably with crystal items) and go cast up some Master Enslave/Arcane Domination/Astral Tempest (easiest).

Of course, see if you can't snag yourself the Arcane Nexus.

If you take very high dominion (10 is good, but 8-9 is acceptable) build a host of Juggs (maybe add The Ark) and go beat down some candles instead of just people.

Use Transformation on some priestesses to beef up a communion using matrices.

Arco is quite versatile--your elemental concentrations will depend on what your mystics look like and what you've got to summon.