Originally Posted by
Tornadofyr
Throughout history, Dwarven Pharaohs have been named Riverhammer. The first Pharaoh was known as Riverhammer, the eighth Pharaoh was a Riverhammer, and the seventeenth Pharaoh went by Riverhammer.
Each of those Pharaohs wielded a powerful warhammer, and would never let anyone else touch it. It was rumored they slept with it in their hands.
There has only been one Riverhammer, and there will always be a Riverhammer.
The Riverhammer is a powerful sentient Dwarven hammer, powerful enough that Dwarves automatically fall under its sway when they touch it.
If the Hammer has no wielder, Dwarves are compelled to grab it, rolling a Wisdom saving throw with disadvantage (DC 15). On a failure, they will sacrifice their lives to get a chance at getting it.
Stats are irrelevant. You don't gain its abilities, you give it some.