Compliant Rod

Weapon (Club), common, requires attunement

A rod that can change shape, elongating and warping at the wielder’s command.

While attuned and held, this weapon can change its form to any of the following: a club, a quarterstaff, or a ten-foot pole. Regardless of form, it has the Reach property and weighs 1 lb. It counts as a magical weapon for the purposes of bypassing damage resistance when attuned.