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Purple text is National spells. Which can be unique summons, but usually it's not.

"Unique Blood spells" does mean the Ice and Arch Devils, and the Helios and Lords (and Illearth if you want).

You just need B3W3 for Ice Devils, B4F2 for Arch Devils.

Assuming you're unlucky and never get the 10% or 25% randoms you want:

B2 Pans are common. Empower one to B3N2 (he'll be >N2, of course, but that's the minimum), and he can forge Thorns Armor. Wear it, and he's now B4. Now he can forge a B1 Knife and a B1 Skull for B6. And he can forge Armor of Souls now, which is also B1 and can be removed, and is pretty nice armor for a thug/SC too. But you don't need it yet, and the Devils are not cheap.

Your best bet in EA for B3W3 is the Jade amazons, they are pretty common. 50 slaves to get one to B1W1, plus a water ring and a robe, and wear the skull and knife too for B3W3. Yay, Ice Devils.

Arch Devils are a bit harder since Garnet Sorcs are more rare, and you'd need 35 fire gems to empower one to F2. It's easier to do the Helios first and use the F4B3 one to summon the Arch Devils.

Same deal with the Demon Lords. Use the B4 Helio, empowered once, with: Armour of Souls, Skull, Knife, and the Black Book if you've got it, or a ring of Sorcery if you have that. I can't remember his slots. Empower twice if you need to.

If you're in an MP game with EA Mictlan, and he doesn't get trashed early, then you're going to have a really hard time competing for these uniques, so maybe don't bother, if that's the case.

(Oh, and I don't think Maenads and blood slaves have anything in common, other than their basic equipment. Diametrical opposites, pretty much.)