Lancer

You have learned to wield polearm weapons with incredible finesse, requiring only one hand. You gain the following benefits:

• When wielding a glaive, halberd, quarterstaff, or spear in your main hand, you may ignore the Two-Handed and Heavy properties. You may treat polearms wielded in your main hand as Light for the purpose of dual-wielding.
• While wielding a quarterstaff or spear in one hand, you may roll damage as if you were using two hands.
• You may not wield multiple polearms simultaneously.
• While wielding a glaive or halberd in one hand, you may not benefit from the Great Weapon Master feat, or use the additional attack granted by the Polearm Master feat.