You can seamlessly adjust your grip when fighting with a polearm, allowing you to threaten a larger area.

<php>echo “<b>Prerequisites:</b>”;</php> Weapon Specialization (Polearms)
<php>echo “<b>Benefit:</b>”;</php> While wielding a polearm with the reach property, you still threaten adjacent squares, and polearms you wield that don’t have the reach property gain reach, but can still attack adjacent squares.