Epic Flail

From LegendWiki

Epic Flail [Style]

You are adept at lunging attacks, giving you more reach or striking around an enemy's shield.

Benefit: Your melee natural weapons gain the [Reach] weapon property if they did not already have it. Your melee weapons possess the [Reach] property while you wield them, if they do not already have it. Whenever you make a melee attack without benefiting from the [Reach] weapon property against an opponent that has a deflection bonus to AC, you gain a feat bonus to your attack roll equal to half that bonus (minimum 1).