Damage: 12-12 (unarmed) 28-30 (wielding starting bow) Physical. The damage display for this CA simply displays the current weapon damage, though it is irrelevant, as Sinister Predator does not affect damage.
An interesting buff which can be used by both ranged players and melee players if the correct mods are chosen.
For a Capricious Hunter specialist, the Hunting Focus mod can completely negate the regen penalty of this buff and actually improve regen times when using Sinister Predator.
The Eagle Eye bronze mod and Marked Shot silver modification work for melee weapons as well.
Obviously a ranged character will benefit from this buff more with the bonus to attack speed and hit chance
With the Ice and Blood expansion, Magic Staffs can be treated as "ranged" weapons, but note that the bonuses to Ranged Attack Speed and Ranged Attack Rating given by Sinister Predator do not apply to this form of attack
Note that, like all CA's in the Capricious Hunter aspect, casting speed is determined by weapon speed, and can be boosted by weapon lore skills and +% attack speed. Likewise, the casting speed will be penalized by wielding a weapon with too high a level.
Pros and Cons
Extremely good for a ranged build right from the start
Can be used for both melee and ranged builds
Attack speed bonus and hit chance bonus make the early levels very easy
If used for a melee build, it must be modded correctly