i play with a zilean named kokirri, who is very awesome. before the buff last couple patches ago, he was awesome, now hes even more awesome. playing with him i guess gives me experience on how to face off against other zileans, most of which i feel are several calibers below the skill of kokirri.
in a game today, me, as ryze, and xenocidalrage as evelyn, went up against a zilean and a rammus. the one thing i noticed that the time warp on rammus' powerball was pretty awesome, but other than that we didnt have much trouble at all.
if you are paired up, you gotta make sure that the time bombs get as little hp as possible and getting no kills. make sure the aoe effect is wasted, when youve got the timebomb on you get away from your ally and your minions, in that order of priority. take turns taking the time bombs. dont let him get you low enough to double bomb you to death. remember that bomb can be cleansed, so if its the one thats going to kill you, cleanse it if you can.
early levels its tough, if hes smart he will get time bomb, rewind, time bomb so at level 3 expect double time bombs. its at this point you gotta make him pay. get a gank from another lane.
while i do think the range is a bit far right now, i dont think its enough that he cant be countered. i dont think theres a dire need to reduce the range.
i think people expect way too much out of their game at levels 1-5. ive had games where i had more champion kills than minion kills. if you cant farm, harrass, kill champions at level 3, then maybe you shouldnt be.