[Autumn]

When it comes down to Kensei the class is pretty balanced overall, but dodgy kenseis tend to fall behind the curb pretty often, they simply lack a bit of firepower when compared to other classes having special damage buffs such as claret call, checkmate etc.

This could be rectified in my opinion without buffing the tank variant of the class directly by giving them crit damage associated to a passive, whether as attached to Katana Master or to a new passive shouldn't matter much, but I do think the crit damage bonus should be around 15/20%.