Add your own!
(Worth noting, many current predator perks can be redesignated as class perks with increased effectiveness.)
Fireteam always visable/no mudding effect (dmg reduction unaffected, pulse unaffected)
Increased explosive damage reduction
Disable parry
Reduced thermal pulse cooldown
Increased leap distance + leap stamina cost reduction
Cloaking unaffected by melee
Cockslap ability
Cloaking unaffected by water
Invisible caster laser/only visable where beam hits
Increased melee speed
Claim boost (dmg reduction, stamina recovery increase after claiming a player)
Laser
Attack capabilities in second wind
Consecutive kill health boost (for every fireteam down, predator gains 25% health on claim, max of 75% on 3rd claim)
Reduced bullet damage when cloaked
Ability to shoot laserbeams from eyes
Significant noise reduction
Roar causes AI to flee
Wristblades cause bleed effect
Increased plasma caster damage/increased energy consumption
Total invisibility when cloaked/drastically increased energy consumption
Damage reduction from boars
Increased wrist rocket damage and burn damage/players on fire ignite other players on contact
Full charged arrows cause bleeding
Increased melee or caster damage if biomask is destroyed
Passive health regeneration/decreased damage threshold
Two handed weapons do increased melee damage (combi, katana, axe, hammer)