Defend [Q] - Protects you from incoming damage. You must be facing the damage source to block the damage.
Lunge [W] - A long range strike.
Slash [E] - A wide area strike.
Drink [R] - Heals you gradually. However, you are vulnerable to attacks while drinking.
Sprint [A] - Temporary speed bonus suited for fast long range travelling.
Power Slam [S] - Deals tremendous damage, even pushing half of it through defend. Slow to cast though.
Kick [D] - Completely ignores defend and sends the target stumbling backwards.
Tumble [F] - A quick evasive move. Can also be used to boost other abilities with extra movement.