Talk:Thresh/@comment-5266525-20131024012547/@comment-6281696-20131029224043

Yeah pure DPS wise 15% AS will beat most other options, though flat AD might win until you have a couple of souls & lvls. Also pure AD wins burst wise for obvious reasons..

Basicly going for AS runes gives you an advantage in the late game, early & mid you simply don't have the AD + souls for the extra AS to have any real impact on a fight, and I generally find it becomes significant too late to really be worth it. Even with the extra AS it takes ages before you start doing noticable damage, assuming you don't get any offensive items which usually you won't have the money for. Which is why I don't really think it's worth it, there just isn't enough synergy to make it shine with normal support builds until you have extreme amounts of souls. With the new plans for supports it might become brilliant though, at least if supports are then finally allowed to actually build (some) damage items & take kills, if only by accident, without every idiot screaming murder as you can actually get some proper amounts of AS & damage going as opposed to a tiny bit of AS and a mediocre amount of AA damage.

Long story short, it works, but due to the lack of synergy with the support builds and the slow rate at which you get souls it just takes too long to become all that noticable.