Ruyi Jingu Bang

+2 Monk Weapon, Attuned, Versatile (1d6/1d8)
When attuned to this staff, the wielder can change
its size at will, making it shrink or grow once per
turn from 1 to 20 feet, giving the weapon reach
with disadvantage on attacks farther than 10ft.
Found on the corpse of the late monkey king Sun
Wukong, it is clear this staff has more capabilities
than meet the eye. Further monk training may
unlock more abilities with this weapon.
The Compliant Golden Hooped Rod. Weight: 13,500.