[{quoted}](name=Teh DuuuDe,realm=NA,application-id=K6EGEal2,discussion-id=0JXJUFQM,comment-id=0000,timestamp=2017-06-04T03:42:26.519+0000)
Karthus is a prominent example of a champ with too much counterplay. He needs a team that can coordinate with him and stay safe while he farms up for his massive late game. In bronze you simply don't have that available. Karthus is definitely not easy to play due to having an almost backwards playstyle for a mage and the aforementioned counterplay to his kit. I wouldn't recommend learning him unless you are truly committed to learning him inside and out. This is coming from someone who used to main him but dropped him due to not feeling he was worth it.
#BuffKarthus