Lets be honest, Zilean can use a buff when he's at a 0.59% pick rate.
I don't expect him to be a champ you would ban, but I would like him to be playable. I think he is in need for a large kit change. Here's my thoughts:
Passive:
The 8% bonus EXP is stupid. The fact that it was brought down to a 1000 area effect made it into something we don't ever see. I say, we change the passive to what his W is, and here's what it will do:
After Zilean uses one of his abilities, he is able to use it again automatically but must use the same mana cost once again. He must also use it in the next 3.5 seconds or the passive will go on cool down. After using the passive, it will go on a 10/7/4 second cool down (at levels 1/7/13).
If you have any questions on the new passive, I can answer them bellow.
His Q (the Time Bomb):
It will stay the same (the cost, damage, everything...) except that the stun time will be at a steady 1.5 seconds for every level.
His new W (a heal, Time Heal):
Since we are trying to put Zilean's W as his new passive, he will need a new W. Here's what I thought up:
Zilean speeds up time for him or an ally to heal their wounds faster. Zilean can raise his or a allies health regen by 10/20/30/40/50% (+[5% AP]%) for 3 seconds. Cast Range: 900 Cost: 60/70/80/90/100 mana Cool Down: 16 seconds
This new ability will raise their health regen based on the allies max health. Even at max level, he will only be allowed to heal up to 30% of their health over 3 seconds. At level 1, you are only able to do up to 6% of their health over 3 seconds. This is not counting AP. If any questions or comments on this, please leave them bellow.
His E (Time Warp):
This is one I've always wished would be castable on both him and an ally, though the cost would be increased. It will go from 50 mana to 45/50/55/60/75 mana per use. If cast on Zilean, or if Zilean casts on an ally, he and the ally gain the bonus for 3 seconds; if cast on a enemy, the enemy is only slowed for 2.5 seconds.
That's the end of what I want to change. If you have any comments, improvements, or questions please leave them bellow. Thank you for reading this.

on him. Watch how much damage hey take when he E/Qs someone. Feel free to double up on that and build
as well. Then you don't even have to E them to proc the double damage HP shred DoT. Both items give lots of HP as well.
and
are good. So is
.