"You feel an evil presence watching you..." Correcting the other suggestion since this went out of date as well as updating the PE Burling Brain Bowl

Only Sale: 1:1 Purple Energy Burlin Brain Bowl (52)

https://backpack.tf/profiles/76561198116258680#!/compare/1494633600/1494720000

https://backpack.tf/profiles/76561198133586126#!/compare/1494633600/1494720000

Capo: https://backpack.tf/item/3121217277

Link To Suggestion On the PE Berlin Brain Bowl

https://backpack.tf/suggestion/597728fbcf6c7535cf0ccaee

Eh It's the only recent sale so far so I can't get any more evidence for this until the current owner decides to sell it