Talk:List of runes (Historical)/@comment-5041438-20120725182758/@comment-90.13.250.190-20120914152840

AD is better for last hiting  early AND for some abilities scaling with AD dealing magical damage ( ex udyr's tiger stance,  lee's  aoe thingy) or not dealing damage ( ex: riven's shield)

i prefer AD over  arpen on marks ( i do take arpen marks though) simply because it helps on CSing and it deals more damage early  ( make some tests, you'll see because armor mitigates too little damage to make early arpen to be better then AD)

also much better jungle time, but yes AS on alistar is better then AD for example because of base AD, but  AD is better then AS on an AD carry

the only champs on which i'd run full arpen are champs like talon  or garen on which i'd grab a brutalizer because  it allows to assassinate squishies extremely fast as their base damage on spells are high

on champs like riven or lee AD is better : riven because she has da huge AD scaling and ad scaling shield ( and you SHOULD get a last whisper on her  anyways as third or fourth item after BT and GA) and lee because his E deals magic damage so yeah, arpen useless on it and early in the jungle it makes clearing faster :  the difference between having to hit each wraith/ wolf once more  and being able to go gank is huge sometimes.