Lance of Force

Weapon Reach, Special Very Rare (this item requires attunement)

While wielding this lance you have a +2 bonus to attack and damage rolls. Additionally, once per round, when you move 15 feet in a straight line towards an enemy and attack them, everyone in a 30 foot cone in the direction of the target must make a DC 15 strength saving throw. On a fail they are knocked prone and take 2d6 force damage, if they succeed on the saving throw they take half damage and are not knocked prone.