The Red Branch

When you roll initiative you may spend any number of hit dice up to your half proficiency bonus rounded up. When you do so increase the reach of this weapon by 5ft per hit die spent.
When you hit a creature with this weapon you may use your bonus action to force the creature to make a DC 16 Strength saving throw, on a failure the creature is moved to maximum reach the weapon currently has. If the creature hits an object before reaching the maximum distance it takes 1d6 bludgeoning damage for each 5 feet