[Shovah32]

If you take the great death pretender(as you intended) the nation does not seem overly powerful to me, although with your prophet to divine bless and an S9 blessing the recruitables and the PD become very powerful.
Without empowerment(to allow teleportation) or taking multiple high paths on your pretender its extremely difficult to get any gems or pearls. With your only mobile mages being S1 finding sites is rare and with 1(maybe a few extra from lucky astral searches) astral income spells such as arcane probing are extremely expensive and again, require the pretenders attention.
As a bless rush nation these guys could be very powerful, the nihilists and deathsheads have insane offensive power per square(alot of nihilists tend to survive the wounds that send them berserk) although they are vunerable to AoE attacks but an S9 bless(W9 or F9 or both would really help) makes them tougher - the same square does not often get hit twice.