High Bless rush strategy :(

[dirtywick]

Rage might work, you could get them beating up eachother.

There's also Decay for Death which I've had some success with killing units, but it's not that reliable.

Dust to Dust works against undead.

Rust Mist, Evoc 3, works wonders against high prot units blessed or not, but your mages aim with it is spotty at times.