I kill ... I wound ... I will make mine arrows drunk with blood, and my sword shall devour flesh. Deuteronomy 32:39-42
After Ehud delivered God's message to Eglon (a knife blade in the belly), he blew a trumpet to summon all the Israelites.
Ehud ... blew a trumpet ... and the children of Israel went down with him. Judges 3:26-27
Then he told the people:
Follow after me: for the LORD hath delivered your enemies the Moabites into your hand. 3:28
So they followed Ehud and God helped them kill 10,000 lusty Moabites.
And they slew of Moab at that time about ten thousand men, all lusty, and all men of valour; and there escaped not a man. 3:29
Kind of boring, I know. But sometimes God runs out of imaginative ways of killing people.