User blog comment:Makbloo/Sraugoth, The Serpent Lord/@comment-4664737-20120830033004/@comment-5127158-20120830083320

Alright it is similar to the energy system and shyvana's furry system. You have an amount of poison which you spend in oreder to cast spells. This Poison is regenerated as Mana is (but more rapidly) and with autuattacks. Additionally the more poison you have left the more damage you do with your autoattacks (not sure if what i wrote was grammatically correct but :P ). Hope I helped you :)