User blog comment:TNickxx/Y U NO AD Support/@comment-7463332-20161211051827

Just a thought on how AD supports might be prevented from building as damage carries: Look at Trundle (or Darius, or Shyvana, or whoever else). Thanks to his Q and W, his DPS scales really well with AD, AS, on-hit effects, and even crit. But he hardly builds any of that, because as a low-range low-mobility juggernaut, he generally needs to build tank to get his damage off. What might force AD supports to build supportive items alongside BotRK or whatever else? Would that even stop them from just going into a solo lane, or the jungle, and just getting those support items way faster Ivern-style? Questions, man.

There is of course the whole thing of mage supports like Zyra and Brand who have great base damage but don't scale amazingly with gold or need to: but this only works because they're AP and AP manifesting as damage has to happen either through ability-specific scalings or a select few non-synergistic items. With AD, it's somewhat different, because attacks' damage always scales off AD, AS, on-hit effects, and crit. Tweaking how that works is certainly not off the table, of course: look at Jhin, Kalista, Ashe, and Yasuo. How to tweak it to fit that same pattern of the mage supports is something else though. Thoughts?