Arcane Strike, Mythic

Whenever you use Arcane Strike to enhance your weapons, the effect lasts for 1 minute instead of 1 round. If you expend one use of mythic power when using Arcane Strike, you can also add any one magic weapon special ability with a base price modifier of +1 to your weapons. This base price modifier increases to +2 at 4th tier, +3 at 7th tier, and +4 at 10th tier.