This skill is an effective means of damaging enemies who rely on attacks, especially if combined with Empathy or Spiteful Spirit.
Unlike Empathy and Spiteful Spirit, Insidious Parasite ends if the caster dies.
Unlike Empathy and Spiteful Spirit, Insidious Parasite will only trigger on a successful hit, rather than triggering on any attack. This makes Insidious Parasite less effective in parties that have blocking skills, miss skills or inflict blindness.
Because of its fairly high cost and recharge time, it would be wise to use a cover hex such as Parasitic Bond in conjunction with this skill.
Multiple hit skills, such as Barrage and Triple Chop, and the normal scythe ability to hit multiple targets will trigger Insidious Parasite on each hit.