User blog comment:Doctursea/Weakest of their league/@comment-4881935-20121029142204/@comment-4881935-20121029155734

^ that's doesn't change the fact that it still has little synergy with his kit.

His biggest feature is his great range and poke, aka a siege, and that's where his idea style is. You stay far away and poke at teams. But a passive that increases his armor promotes more close encounters. So by playing his idea style, people won't be making any use of his innate passive.

For an example, imagine if Morgana was to have Corki's innate passive. Dealing 10% of your AD as true damage is not bad, but it doesn't fit how Morgana is designed. People would complain that this passive is 'bad' for Morgana and should be swtich.