Legendary Zilean Skin
So starting with the basics:
What is the attributes of this new costume? Well, It AGES throughout the game.
We have learned that Zilean was a good elementalist mage that was OBSESSED with magic that alters reality and time itself. We also know he was very young when he got into the mantle of chronomancy and is actively against Void invasion despite Shurima would destroy entire Icathia without its aid.
Now, what can be done according to this?
When we start the game, We start with a considerably young Zilean. He is between 20-30 years old.
Every 10 minutes, he gets older. 10 minutes equals 10 years to him. There is 4 forms.
Youngest. With short beard and hair, considerably good body (not as slim as he is when he gets older)
Middle aged. Same but slightly longer hair and beard. with little gray parts on it.
Old. He starts to become slim and grows ridicilous hair with a beard yet they are still not long enough. Despite hair colour being mostly gray now, Its not his ''FINAL'' form!
Lost in time. He grows a huge beard and hair. Just like on original skin. Gets slim and is obvious that he is almost a dead man.
Now its time to talk about Skills:
Passive Time In A Bottle: There is no alterations on the passive itself. HOWEVER, when Zilean stops to share the knowledge and starts doing so, Time echoes appear around Zilean. Just like Ekko's Ult, These various types of Zilean's appear and disappear with a flinch till the connection ends. The best part is, As our character grows OLDER, these echoes of time gets YOUNGER. Meaning, when our Zilean is young, he see's his OLD selfs from future to obtain knowledge. When Zilean gets old, He creates a magical field that causes Time echoes to appear and he see's his young selves.
Q Time bomb: Zilean fuses electricity with his bombs to make them stronger. Every explosion creates a huge electricity blast, instead of the yellow effect.
When Zilean uses his bombs to STUN enemies, Every character in the vicinity that is affected by the stun will have a time echo. Just like Illaoi's Q causes player's to jump out their souls only for a brief moment, These time echoes will exist momentarily. They will only appear 0.3 seconds and dissapear as fast as they came.
W Rewind: Determined to change the consequenses he experienced, Zilean rewinds time at the cost of unstability for both his phisical AND mental health.
Everytime he uses Rewind, His body will momentarily get older and turn back to normal.
If Zilean is already Old, His body will get younger and turn back to normal.
Its an affect that will appear only for a brief moment. Does NOT affect 10 minute rule.
E Time warp: While he slows down time for himself and move freely, Light has a hard time catching up.
Just like the Summoner spell ''GHOST'' and Ekko Ult's Passive abilty ''AFTER IMAGE'' Combined together, Zilean has his past versions moving behind him. These clones look like they are all connected UNLIKE Ekko's Ult.
These clones DOES NOT stick around. Just like the spread images existing after ''GHOST'' Spell, These clones will look like mashed up zileans doing conga.
This affect will also trigger on allied units.
This affect will NOT trigger on invisible units.
This affect will NOT trigger on enemy units since it SLOWS them down. BUT, enemies that are slowed down will have time runes around them that causes light to shatter while passing through.
R Chronoshift: Zilean uses time runes to protect a unit from death. Target will have some broken clock parts around them (minute hand, cogwheel etc.), two broken (from half) hourglasses, a plasmic moire and couple of time runes that appear and dissappear during this time.
The time runes will cause light to shatter around the target as well.
The ressurrection affect is rewind of the death animation of the target. For example, Zed will just get back from his portal and stand up while ekko will appear out of thin air.
IF Zilean ressurrects HIMSELF, He will get his most opposite form for 10 seconds and slowly turn back to normal.
If he is young, he will get as old as possible and will get younger.
Base animation: Zilean and his alternate selfs gather around a clockwork bomb. While messing around, the youngest Zilean makes something wrong and the explosion creates a spacetime rift, which sends our current Zilean to base.
WHEN Zilean reaches his OLDEST form, he will stop his young self and successfully will construct the bomb, which will solve the paradox and all other versions will turn to their own times which is again, for our current Zilean its the base.
DEATH animation: Unable to accept death, despite the dangers of getting lost in time, he isolates himself from time and space. Which causes all 4 of his forms to exist and dissappear through time at the same moment.
For animation purposes, I prefer him grabbing the hourglass he carries with him and using pyromancy fused with time magic to break it which results his dissappearence.