[Taqwus]

On land, the only Dreamland mage available is the S1 Starspawn, and that's only on the coast, IIRC. The rest of the Illithids and Starspawn are recruited only at underwater castles.

Strong WS (and H, with free prophets), access through randoms to ED, badly needs Nature for supply items (don't want the illithids to starve with too many cultists running around for the declining pop) and perhaps Air (for anti-missile; alternate approach is death for Darkness).