Viper exudes an infectious toxin that damages and slows any enemy that attacks it. This includes any damage source, not just normal attacks. The acid exudate also increases Viper's resistance to spells.
Max Proc Distance: 1400
Magic Resistance Bonus: 10%
Damage per Second: 8
Attack Speed Slow: 8
It is not unusual for sword and shield alike to corrode in the very hands of those who attack the Netherdrake.