Legendary Hero Idea: Volke - Man of Many Mysteries

I am up again with another Legendary Hero idea. I have kept this one for a long time already. Here it is:

Volke - Man of Many Mysteries
An assassin who has worked for multiple people, including Ike. Demands gold for whatever job he takes on, regardless of how large or small.

Dagger Infantry
Element: Wind
Ally Boost: HP+3, Spd+3

Weapon: Baselard - Mt 14 Rng 2
If attacked, unit can counterattacked regardless of distance. After combat, if unit attacked, inflict Def/Res-7 on target and foes within two spaces for 1 turn.

Special: Lethality - Cooldown 4 - Instantly kills an enemy. Only triggers if damage unit can deal >=1. (Skill cannot be inherited) (3rd tier after Glimmer)

A Skill - Deadly Stance 2 - Grants Atk/Spd+4 during combat if foe initiates combat.

B Skill - Cancel Affinity 3

C SKill - Speed Smoke 3

Stats:

HP: 37
Atk: 32
Spd: 35
Def: 26
Res: 22
Total: 152

Volke was a force to be reckoned with in his origin, even moreso in Radiant Dawn. He had a great offensive statline as well as a good defensive base, which together makes him all rounded. Although his Attack isn't too impressive here (especially for a colorless), the Defense debuff he inflicts ensures that the following engagements towards him deal sufficient amounts.

Thoughts?