Talk:Kennen/@comment-4964269-20120515113629/@comment-3477331-20120515190604

Shield is ok if you're up against physical damage you can't avoid. If boots would allow you to just kite away from most of the physical dmg, that's better as you will buy boots at some point anyway, while you will actually sell the shield. And in mid lane you face magical damage pretty much always, so the armor of doran's shield is a waste. That cuts down the effectiveness of doran's shield to the point where boots are superior even if they don't help you to avoid damage.