Desperation is better on units with high speeds like Linde, Lucina, Minerva, etc ...
Brash Assault is better on units who almost never double like Ephraim, Chrom
With Skill inheritance, not anymoreKlein is one of the best ranged units in the game. He's possibly even better than Takumi.
Now everyone can use Brave weapon + Death Blow with higher base than Klein