Some suggestions.
Marksman
- Killer instinct :
-attack range +15%
-critical chance -50% OR target evade chance +50%
Since you buffing up Hawk's gaze, IMHO recharged arrows needs a change too,
- Recharged Arrows :
-Health per arrow (LV 1-5) : 12 14 16 18 20.
-Mana per arrow (LV1-5) : 22 24 26 28 30.
Knights
- Knight's haste :
-Movement speed (%) : 10 15 25 35 50
-Duration : 4 sec
-Cooldown : 80 sec
-GCD : very short
-Mana cost :60 100 150 180 200.
-Paladin's aid and Blessed switches places,
-Blessed becomes the new spell, could be called "Sentinel",
- Paladin's aid should be modified :
-Casting time :instant
-Mana cost : 150
-Cooldown : 50 sec
-Amount of heal : fix 400 HP.