Talk:Wit's End/@comment-68.38.212.180-20130208060603/@comment-5490997-20130303142846

Also consider that most spell damage is burst damage and that it will be thrown your way as soon as you show your face. So having magic resist before entering the fray can be a lot more valuable than building it up while you're in the fray.

And don't forget any % magic pen can reduce the effectiveness of the stacks by more than 40%.