As a person who is a F2P and pyro "main" sceptical to cosmetics. Buy this work kind unique,kind stylish. It's not trying to create a monster, or psychopath, or ballonicron man. It`s just cool mysteries as a spy but cool as engines cowboy cosmetic.
Only do not understand why it`s Halloween mode need (yes mr. invisibility is a person from a scary story), but still I want to wear it at any moment.

If you want to try this or download mode or play on Creators.tf where author give material and you can test it