The only thing that pen doesn't benefit is her shield and the extra 7 damage you might block from 9 AD isn't worth the damage you lose by going AD instead of ArPen.
ArPen runes + Brut = basically true damage if you get it early enough. It really benefits Riven's snowballing.
#4Knight_Of_OrderPosted 4/16/2013 4:26:17 PM
AD marks + quints or AD quints+ Arpen marks are both viable, i dont think full Arpen is that graet on her, her ratios aer too good to pass on early game. --- Amid the turmoil and tumult of battle, there may be seeming disorder and yet no real disorder at all Sun Tzu
#5infinitexxPosted 4/16/2013 4:28:18 PM
AD Marks and Quints. --- Posted from my Xbox360 with 360FAQS v1.1
#6ssj4supervegetaPosted 4/16/2013 4:28:56 PM
only reason i'd say full on ad is cause her shield scales off ad. arm pen doesnt increase that. --- LoL summoner: Vejitables Bromaciaaaaaaaaaaaa!
#7FvPPosted 4/16/2013 4:33:48 PM
depends on matchup though --- FvP | falco_vs_peach | *^*"The Shinies" Member*^* | Adventure Time Member PBWSB | PDPSB | /pdpsb/ | PBWSB User Tournament Winner: DiabIo
#8BhelliumPosted 4/16/2013 5:21:33 PM
AD noticeably improves her early game, which she needs to go into full on mega-snowballer --- If Pluto is not a planet Europe is just West Asia.