The Verenian Watchers
An almost comically oversized maul, this weapon was clearly made by a dwarf. When a command word is said, the wielder is grown to immense size, as if under the effects of the enlarge/reduce spell. After this ability has been used, it cannot be used again until the wielder finishes a long rest.
Stephon Greyhart is the current wielder of the enchanted maul.