An attack that adds 15*SkillLV to your ATK (unmodified by Armor and VIT Def) to your normal damage. This bonus damage is always inflicted, whether your character lands a normal hit or not.
Envenom has a (10+4*SkillLV)% chance to inflict poison status on target. Poisoned targets have their DEF reduced by 25% and lose 3% of Maximum HP every 3 seconds unless that would cause HP to drop below 25% of Maximum HP.
The entire screen turns purple for the poisoned individual. Undead property and Boss monsters cannot be poisoned.

Deals Poison elemental damage to a target that has a chance of inflicting Poison status.
Target in Poison status recieves certain damage according MaxHP every second and reduced physical defense by 25%.
Envenom inflicts normal damage, but gets additional damage according skill level.