[ChrisByler]

Demiliches, wraith lords and mound fiends can be banished and take extra damage from herald lances, holy pyre, etc. Golems or firbolgs or whatever with wraith swords can't and don't. You can empower those things in death - but then you're back to very expensive, just like the modded lifedrain weapons (which of course should include the standard - half the point is to make it harder to lifedrain without bringing your death mages to the battlefield where they can be killed).