[Wish]

the only summonable astral mages are spectres (random), lamia queen (random or at least in dom 2 they could get astral) ether lords, and golems... tartarians (random).


the best inde astral is a sage though. either sages guild or library to make them - fairly common. there are also enchanters, sorceress, crystal amazons, iron order, seers

probably others I am not aware of.