zilean ult cooldown needs to be static. or longer cooldown.

almost 30 seconds with 45% cdr on that ult is just broken. i think it was even shown in the lcs. that match were people were diivng turret for days and zilean keeps on ulting and ulting. i think his ult should have a 60 s cooldown with 45% cdr. its just too low. the health scaling on it is crazy. basically. 100% health for any squishie. i also just feel like. it needs. a cast time. or a channel. you can't really wait it out as he just ults whoever that person is really low which means the ult is almost sure to trigger. the ult is just too powerful. in a 1v1 situation. or a gank. sure you can wait it out. but not always the case. and again its just one of the most game changing ults with a low ass cooldown