User blog comment:XelNecra/Image and Role of Support/@comment-76.84.51.37-20121113172441

In Dota support is more fun. Look there and you will see why. Imo it is how items are. Cheaper wards (and items in general), and completed items have more utility in them to help out your team. Here completed items have more raw power.

Example, in dota: A support can get an item to render an ally OR enemy untargetable for two seconds (which could make or break a fight, catching someone OR preventing someone from dying). There are items that give the Silence effect. Auras are generally better. Armor and MR don't scale as well as they do in LoL. Everything adds up to a better "support" role.