Talk:Garen the Night of Demacia/@comment-208.233.32.40-20110916152632/@comment-3473553-20110920024013

Magic Pen works with all sources of magic damage, including item effects. I strongly suggest that you only pick up Archaic Knowledge in the offensive mastery tree though. Building magic pen or using magic pen runes would be overall detrimental to your damage output, though they'll never expect a Garen to have magic pen runes. xD