death-dealing
noun1
The causing of death; murder or killing.
- Sad lays were sung about the beset king, the vicious raids and ravages of Grendel, [...] how he would never parley or make peace with any Dane nor stop his death-dealing nor pay the death-price.1999, Seamus Heaney, Beowulf, London: Faber and Faber, page 7: