Predator
10 - Shadowblade : A deadly attack from behind while using stealth.
11 - Reconnoiter : Increases recon skills by 10 for better stealth and damage.
12 - Bleed : A piercing attack that also deals damage over time.
13 - Hunter's Instinct : Increases agility
13 - Impale : High damage attack that also lowers a targets defense against piercing.
14 - Stalk : This ability places you in stealth mode and lowers your threat level with the target
15 - Pierce/span : Quick Attack that deals medium damage.
15 - Back Shot : An archery attack from behind.
16 - Open Shot : Requires a ranged weapon. Launches two shots at once ignoring some enemy armor.
17 - Hunt : Allows stealthed movement and the ability to see hidden enemies.
17 - Blade Flurry : Gives you a chance for an extra melee strike to target and another target on each successful strike.
18 - Survival Instincts : Increases parry and defense skills while lowering attack speed.
19 - Shrouded : A flanking attack that deals medium damage and stealths the predator.
19 - Pounce : Attacks up to 5 creatures in the same encounter from stealth.

I did not write this information. I do not claim to be the source of such information.