[Taqwus]

I once went a bit insane and gave a Succubus the Tartarian Chains, a shield (probably either a shield of gleaming gold), a wraith crown, probably boots of stone if they get foot slots, antimagic and luck talismans. Amon Hotep would be even cooler.

I've played with insanely-equipped Tartarians, in particular the guaranteed-E4 cyclops, w/ something like Magebane, Barrier, wraith crown, bone armor / Asfetik / Monolith / robe-of-invulnerability, boots of quickness or winged shoes, antimagic talisman, Chalice. att/def aren't that high, but they have high-enough hp that they don't care that much except against other SCs.

Limne, Queen of Elemental Water, can be brutal due to the extreme regeneration. Use a high-prot armor and a decent weapon, with Wave Breaker being extremely thematic.

A Queen of Elemental Air with Tempest is also quite thematic, and unlike most flying SCs can still fly past the enemy's front line even if they've got a Staff of Storms.