An Age Unbegun: Not Men, but Wolves
This maul has an ornately carved stone head with a small compartment fit to hold a rune or an oil.
Though not magic, Runebreakers are exceptionally well made weapons of dwarven design. When the compartment in the head is loaded with an oil or rune, the expendable item is used automatically the first time the wielder lands a blow in combat.
A Runebreaker was found among the orc hoard. It was taken from a member of the elite militia of dwarven exiles known as the Black Sons.
No one is currently wielding the Runebreaker.