Sideswiper
This long-bladed polearm seems to sweep naturally through the air without effort.
When you make an attack with this +5 speed glaive, instead of attacking normally, you must make an attack roll against each creature in either all your threatened squares in front of you and behind you, or to your left and to your right.

Example: Theodor is a human paladin wielding the Sideswiper. He is standing in (0,0). He may therefore choose either to attack everyone in (-2, 2), (-1, 2), (0, 2), (1,2) (2, 2), (-2, -2), (-1, -2), (0, -2), (1,-2) and (2, 2), or to attack everyone in (-2, 2), (-2, 1), (-2, 0), (-2, -1), (-2, -2), (2, 2), (2, 1), (2, 0), (2, -1) and (2, -2).

This do?