Inaccurate?

Weapon Group (Flails and Chains)

( Unearthed Arcana, p. 96)

[General]

You understand how to use fl ails and chain weapons.

Prerequisite

Benefit

You make attack rolls with the following weapons normally: light fl ail and heavy fl ail.

Normal

When using a weapon with which you are not proficient, you take a -4 penalty on attack rolls.