I have a question but why is Evelynn the only AP champion with % magic pen?
Because if she didn't have that she would not be able to kill her target right? Because squishy champion would itemize magic resist and she would not be able to kill them even with 2 pen items and void staff right? Because you guys did your math this time and though that Maybe evelynn was 100 damage short to kill her target so lets give a % magic pen on her E.
Well I'm always around 100 damage close to kill my target when they stack up MR with my full combo on any burst mage champion that takes more risk to kill their target than evelynn.
If anyone that deserve % magic pen on their abilities are no mobility AP champions that have no escape and are very slow.