Thread:Linathan/@comment-73.189.93.60-20151119192535/@comment-26140304-20151121191520

Spark vulnerability is a debuff inflicted on enemies. When enemies are affected by this buff, they will receive more damage from Sparks.

For example:

Rhoa inflicts his 25% Spark vulnerability debuff on an enemy. That enemy will take 25% more damage from Sparks.