I think that Zac passive is Weak and broken Riot please check these ideas

We all know Zac,And why people dont play him ( Because he is STUPID) I was thinking about some ideas that may make him a better champion:- His passive:- 1-The live time of his passive is 5 min (witch is really long) that mean 6 times in the game if it lasted for 30 min(we know the chance to survive after he die is 10%) ,i think you need to reduce the time to 4 or 3 min 2-His heal on chunks is low,i mean he need to cast an ability 4% of his current health then heal 4% of his maximum health if he moved on his chunks(its Low),I was thinking to make it like one of these ideas A-Make it Increase with Level. Example:- 5%/6%/7% at level 6/11/16 B-Make it Scale with AP (on maximum health). Example:- 4% Plus ({1% or 2% ability power}%)Witch means that if he have 100 AP,He will get 4% plus 1%= 5% heal of his maximum health. C-Make it increase with AP. Example:- He heal (10% or 15% of his ability power) plus 4% of his maximum health,Means If he have 100 AP he will heal 4% + 10 HP points

Well after all its just ideas,So you may like it or you may not,Thanks for reading and sorry if my English was bad. All love for