In most corners of Thedas, funeral rites include burning or dismembering the dead to prevent them from becoming host to demons. But not everyone gets a proper burial. It is not unheard of for the dead to be thrown into mass graves in the aftermath of a battle or execution, almost asking some demon to claim the corpses.
—From Beyond the Veil: Spirits and Demons by Enchanter Mirdromel
Damage against undead increased