Simple Samurai fix that keeps identity

[YukiB]

Yoshi-P has already acknowledged the crit buff issues and has more or less stated that they are likely going to be redesigning the crit stat up to 7.0. By 7.0 those buffs will likely function in a completely different manner.

Completely different manner probably means "5% increased damage for 20 seconds on a 120 second cooldown."