[Aleph]

Nothing on the Civateteo? Summonable by a Tlahuelpuchi with a skull staff/ +1 empowerment, an exceptionally good leader for non-flying demons (is undead herself, +ranks in death and blood), has ethereal/life drain/fear/sacred, and can be set to reanimate longdead to add 0 upkeep chaff to pull Banishments off your 0 upkeep demons. Not bad for 25 blood.

I might also suggest a quick detour to Conjuration 1 after Construction 4 to grab Jaguar Toads. Nahaulli can spam these guys like mad, and they are sacred poison spitting tramplers (albeit fairly ineffective ones) for 1 nature gem apiece.

Very nice guide.