I want to highlight Flesh Sacrifice again.
Flesh Sacrifice
Receive 1 Ap and 25% damage boost at the cost of Constitution.
Special - 100% Chance to set Flesh Sacrifice for 3 turn(s)
Action Point Cost - 0 Use
Properties - 4 turn(s) Cooldown
It gives you 1 AP unlike the Human racial skill that costs 1 AP and the Dwarf and Lizard racials that costs 2 AP. Damage bonus aside (which is nothing to sneeze at mind you) that 1 AP isn't tied to any direct action so it's potential is whatever you chose it to be -- Stealth, Flee, Auto Attack, Hail Strike, Battering Ram, Movement, etc. The disparity created by this one skill is pretty huge.