User blog comment:TheTobarMethod/Nerf Worthy Champs + Your Thoughts/@comment-9370016-20130704112727/@comment-9370016-20130704114812

Also what I really like on him is how they found a way to make him deal damage while also preventing him from dealing too much if built for it.

His 2nd passive on E gives him ability to attack. This is what most other supports lack. For example with Nami. Once all your skills are used and done you are preaty much useless and has to sit back for cooldown. Esencially you can be ignored for a while after your first spell rotation.

Thresh can deal damage with a scaleing that is not dependant on gold with his souls counting towards his E so his autos still do something after he is done with a rotation but his kit prevents him from doing to much. While he uses his Q and E he can't auto attack. Now Q lasts for 1.5 sec plus if you pull yourself it also lasts the pull duration for him, if you build him AD then he won't be able to use it for that long wich can be detremental for a carry in a team fight. Also if you pull yourself in with a squishy build then you'll just die. Also hes scalings a mixed enough that if you focus either AP or AD that you ignore a huge part of his damage so you can't really optimes him for damage. This is what pushes him to his designed support role but this is also what makes him excell at it right now besides his utility, he can always make himself count.

Honestly I'd like if the rest of the supports had some mechanics too that alowed them to deal damage without pushing them or even alowing them to build for it. ( The problem with atempts before Thresh with supports that deal damage for example Lulu is that at that point they have just gone Ap mid instead of support wich was not where they wear intended to go. )