Let's talk about Zac (Potential, Reworks and a Skin Idea)
##REWORKS
https://vignette.wikia.nocookie.net/leagueoflegends/images/f/f8/Zac_OriginalSkin.jpg
https://vignette.wikia.nocookie.net/leagueoflegends/images/5/5b/Zac_Animation_Study.png
So Zac 
is one of those no so quite popular champions, due to him being part of some other champions who received a mini-rework that so happened to upset Zac's playerbase. Not to mention I quite oftenly see posts regarding how they want his ultimate reverted, or other parts about him changed/reverted.
##POTENTIAL
https://i.ibb.co/vDNg5MR/Zac-Render.png
So Zac's theme is being this "Secret Weapon" Sentinel like Blob/Ooze (Based on LoLWiki), who was created in a Zaun lab (if i'm not wrong). There are possibilities and potential to making him represent the theme better.
I recently watched the movie VENOM https://i.ibb.co/tHVbCG6/172178-bb.jpg, which is what inspired the idea for this post and the idea for a skin for Zac, since he is the closest we have to a SYMBIOTE in the League of Legends Runeterra world.
But what if Zac was able to use his Goo and forge them into literal weapons? Since he has the title of "Secret Weapon" (which I know is a more of a reference towards him), so similar to how Venom turns his into Spikes and whatnot. So imagine some elements of that combined with his iconic abilities that define him (being his Passive and his E) both of which make sense and relate to something that Venom also does (collect parts of himself that may get splashed around, and continuously jumping towards enemies).
I know something like would probably never get considered because that would most likely be considered as character stealing as Marvel has copyright on majority of their content.
##SKIN
##Symbiotic/Symbiote Zac https://i.ibb.co/9td8m60/Zac-Square.png
https://media.giphy.com/media/oO8yKcmTxjrm0Ony4f/giphy.gif
So imagine if one of his abilities get's changed to this (which would help to support this idea and make more sense for such a skin to exist)...
https://i.ibb.co/CwKp6RV/Elastic-Slingshot.png Unstoppable Matter
- ACTIVE: Zac Jumps towards an ally or an enemy for X seconds. Gaining a new set of abilities which are casted from the target which he is attached to.
