Quick, I need to decide what runes to buy to make AD leblanc top work.
halp.
halp.
Ability power and magic penetration.
Build full AP. She has a hidden passive that converts all of her AP into AD. Trust me.
No, no, I need to convert all my item's stats to ad. I realized that AP items just don't do the job I mentioned, so I need to build ad.
Full on AS and armpen
Interesting opinion (thanks for replying) but why would that be?
.... why?
i would just assume a standard Ad page would work (9x ad reds, armor yellows, MR blue and ad quints)
If you search the depths of mobafire, there is an guide about adc leblanc top (it used to be rated third), where it speaks about the idea of a leblanc with the DPS of an adc locking down the enemy with her chains over and over (ERE can be used in success if you max e). I tried it out when the tank meta was a thing, and it had great success, so now I'm looking to make a special rune page and mastery page for it.
Build full onhit, let enemy bring you down to 40% so you can become 
Attack speed AD