Mephisto Buff Idea
I always thought Mephisto is a very unique champion. He has power gain, passive damage and power drain on the sp3. Only thing he lacks as a mystic is consistent buff control. He has soul imprisonment in his sp1 but that consumes a persistent charge. Soul imprisonment is unique in itself as well, it isn't a nullify, it isn't a stagger. I guess it is a bit like neutralize.But because of the persistent charge thing, I doubt anybody can utilize the buff control ability. So here is my pitch to make him better:
+ Remove persistent charge requirement from sp1
+ Increase incinerate damage on his aura slightly
+ add the ability to power drain multiple times from sp3 but gain the indefinite aura once
Another point could be adding some sort of nullify attached to his aura but that might be too much and the duration of the aura might need reduction for that. However the above three points alone will make him an amazing character.
Let me know what you think.