User blog comment:Revanchest/Runic Compass/@comment-12314620-20140713110854/@comment-12314620-20140714102735

I typed Wraiths/Wolves and meant "/" as or, since normally you take either Wraiths or Wolves and go to redbuff right after. In this case you don't have smite available for your red. If you do decide to take both wraiths and wolves you are more prone getting countered at red (Lee for example would have in most cases been able to take red while you were killing wraiths). You are also behind in jungling speed so if they don't try to counter your red you cannot counter their first gank (won't be there in time) and they start pressuring the lanes that much earlier.

I know about trinket ward being available straight from the start of the game but unless your laners also help you by warding you cannot gain enough vision from a single ward to be sure they won't be invading. If a laner uses a ward for early vision they are much more vulnerable early for their lack of vision.

And finally the lack of CC on adc:s. Unless the CC is immensely powerful (looking at you Ashe) I'd much rather take reliable defensive tool on adc than hard CC. It makes said adc much less reliable on team peeling for him, which is rare in soloQ. Supports often have lots of CC for solely the reason that they can use it to peel for adc and enable them to do damage. In case of Ezreal he is able to survive quite well by himself and not be so reliant on his support. In exchange your supports is able to use their CC more offensively while his carry still remains somewhat safe. For this sole reason Ezreal is actually much better in soloQ than in organized play: he's able to survive without team contributing much resources to defend him while still doing decent damage. Also while AS on support or mage might not be a big deal in teamfights it's immensely helpful for taking turrets.