Revamping and Fixing the Cross Class System

[Felis]

Haymaker changes to where it delivers an attack with a potency of 170 and can only be used immediately after being critted or evaded and then attacked. and is OFF Global cooldown Additional effect Slow +20% duration 20 seconds.

It only need the stun effect back.
During 1.x the skill was more like a counter attack. You evade the enemy's attack, counter with a side blow on the head and the enemy get stunned.

Featherfeed -> dodge -> counter to stun -> go behind enemy while stunned to use backside attack
That would have been a good positional training for low level PGL outside of dungeons