Embalmed ones

Any blade carried by a Tomb Guard, Casket Guard, or Icon Bearer counts as a magical weapon with the Killing Blow special ability. This doesn't apply to any magical weapon that the Icon Bearer takes from the magical item list.

See page 20 and 21 of the army book.

A flammable creature hit by a flaming weapon or fiery spell will take double wounds, so every wound suffered by a flammable creature will be doubled to 2 wounds. Take any saves before multiplying the wounds.