REDDIT POSTS:   / here_is_a_detailed_guide_on_armormagic_pen...  
  / here_is_a_detailed_guide_on_armormagic_pen...  

Links and Relevant Stuff:
DISCORD:   / discord  
TWITCH:   / xlfanna  
EUW: A Fae Dawn
TR: Fanna
YOUTUBE (why?):    / @fannalol  

0:00 Intro
0:13 "Sponsor"
0:27 Flat Pen
0:48 Percent Pen
1:31 Lethality
1:51 Resistance Reduction
2:31 Optimizing Penetration Items
2:52 Calculating Pen Example
3:22 Outro