I got into contact with HomDGRat and I was able to get a bit more info out of him on Skirk, I will be trying to ask more questions 1. When Skirk enters the skill state, she gets a certain amount of Serpent Cunning, and it does decrease overtime 2. The Burst has a fixed amount of energy required to be used, extra energy similarly to Mavuika increases the DMG of the Burst 3. Max energy cost & more info will be revealed in a few days