Advanced Weapon Mastery (Speed) V2

Characters at 4th Level in place of gaining new weapons mastery properties you can bolster your mastery to new heights with Advanced Mastery. Choose one weapon to which you have Mastery you can bolster their power depending on which of the three Advanced Mastery trees it is mentioned under in the Adv section of weapon list. In place of gaining an additional weapon to have Mastery in you can choose the same weapon once again with the Weapon Mastery Menu to gain advanced mastery. A creature with Advanced Mastery with a Speed (S) weapon gains the following benefits as long it is equipped.

Mastery Bonus: You gain a +1 to attack and damage rolls with the weapon on top of any existancing bonuses or enchantments. This bonus turns to a +2 on attack rolls & +1 on damage rolls against targets who are wielding a weapon from the Advanced Power Weapon Mastery tree. 

Fencers Step: Once per turn, you can make an attack roll using your chosen you can move up to half your movement speed without provoking opportunity attacks. If you land a critical hit with your chosen weapon in this manner you gain the benefits of the Dodge action until the start of your next turn.