You're a master of one type of weapon.

Prerequisite(s): Weapon Focus.

Benefit: Double the bonuses on your attack rolls from Weapon Focus and Greater Weapon Focus. As a swift action, you can expend one use of mythic power to gain a bonus on attack rolls with your selected weapon equal to half your tier until the end of your turn.

Special: If you have taken non-mythic Weapon Focus multiple times, you must choose which of those feats this enhances. You can take this feat multiple times. The effects do not stack. Each time you take this feat, it applies to a different non-mythic Weapon Focus feat you have.