Enhancement: +6 attack rolls and damage rolls
Critical: (Fear) The target is dazed until the end of your next turn.
Power (Daily * Fear): Free Action. Trigger: You attack with an implement power using this implement. Effect: The attack gains the fear keyword, and each target of the power that you hit or miss grants combat advantage until the end of your next turn.
Clearly, the daily adds the fear keyword because it says so explicitly. However, the critical also has the fear keyword. Therefore: does the benefit from the critical mean that all attacks with with the weapon are fear-keyworded, or just those I crit on?