User blog comment:Big Chill V,S Ghost Freak/FACEOFF: round -1 Ultimate big chill V.s Ultimate Ghost freak/@comment-25499203-20190710140449/@comment-25499203-20190710152836

Read the post. He said Ultimate Ghostfreak was a quarter pyronite for whatever reason and had pyrokinesis. Removing the heat would kill him. And even so just freeze the area around him lmao. Ultimate Big Chill can also survive extreme temperatures so he has more chances at beating Ghostfeak.

Also he didn't possess the Ultimatrix. He was stuck in the Prototype yes, but that's it. He also possessed Ben once because he let him to get him stuck on the Omnitrix again. Also what do you mean by "epitome of Upgrade/Downgrade/etc. evolution"?