When I took promicin I would develop the ability to become and or take on the abilities of my tattoos. In so many words what I mean is that I could swim and breath under water like the koi fish on my right wrist then travel on land as a snake like the one on my other wrist.
And as I learned to gain control over these abilities I could have certain wizard-like powers as to the wizard on my left shoulder or strike evil into the hearts of others through the power of my demon tat and so forth.
I have other tats but you should now have a valid point from where I stand with my abilities and for the most part I would be more on the side of helping others in need in an uncommon way. I would be ruthless in the acts I take against those I see as an enemy.