Talk:Zac/@comment-5194610-20130309224851

I think it is a champion who changes/evolves into different forms when it reaches Level 6, 11 and 16, like the pet of the biochemist in ragnarok.

http://leagueoflegends.wikia.com/wiki/File:Z.A.C._Lab_Documents_Page_2.jpg

1st creature - Lvl 6

2nd creature - Lvl 11

3rd creature - Lvl 16