Death 9, Fire 4? Yowza! You can summon Anthrax, the Banefire Lord with that if memory serves. It's a little overkill for Reanimate Archers, since that spell doesn't scale in effect with level (it's 10 archers regardless of caster power).
With that much Death, consider the Wight summons: it's costly to research, but it gets you *20* Wights, which are basically more powerful lictors: intelligent, well-armored, decent-MR, undead troops with cold aura and bane blades. They're not Ethereal, but you can't have everything... Wailing Ladies are possibly better 1-for-1 (ethereal, stealthy, attack hits an entire square, attack's damage is "make an MR check or DIE", scary; just needs Mass Protection to be cast) but harder to mass-produce since each cast nets you only 1.
Pale Riders summons longdead cavalry. Not too impressive units individually (although they're fast, which is good, and faster with Power of the Sepulchre), but the summons is definitely bulk and increases with higher death magic.
Heck, with Death 9, cast Well of Misery and use that to fuel an Utterdark.
Utterdark is a lovely spell if you can survive the hatred of just about everyone else...