Professional Killstreak

A kill counter that shows up on the player's heads-up display that increments by one for each kill. Killstreaks are indicated by a number and a small arrow next to the kill icon, additionally displayed onto the killfeeds of other individuals. Killstreaks messages are broadcast across the entire server once a certain threshold is reached, starting from five kills onward. Professional Kits are the rarest. An eye particle effect is displayed after five kills and intensifies after ten. The effect matches the color of the weapon's sheen in a similar fashion to the Eyelander; when using sword weapons as Demoman, the effect is only presented on his right eye.

Bing soy: a golden pan just dropped in my inventory
Server: 👍
Mr Soy: Ye, I also sold my Professional Killstreak vintage collector's edition battle scarred Hale's own strange golden frying pan.
Server:

Mr Bing: for 20 keys just scam some schmuck
Server people: . . .¿
Bing Soy: *Proceeds to 360 head shot penetrate entire enemy team while jumping off a cliff just to get stuck on an invisible pixel*