The Dusekkar, along with Doomsekkar, both have Fire and Smoke particles, but unfortunately there were scripts inside of each accessory that caused the particles to get disabled if they aren’t being worn by UserId 916, Matt Dusek.
This was the case for Doomsekkar (purple & green retexture) for the longest time, but sometime in 2018, this script was removed so that the particles would show up for everyone. Unfortunately, this was never fixed for The Dusekkar, meaning that its hundreds of owners don’t experience the hat like it appears on the website - with fire and smoke, which feels deceptive for anyone that received it. This would be important to fix, especially if Roblox ever plans to release The Dusekkar as a limited item.
Expected behavior
Unless if this was intentional for The Dusekkar and not Doomsekkar when it released, I would expect for the script inside of it to be removed/disabled. If it was intentional for only Matt Dusek to have the special effects, the thumbnail of it shouldn’t include the fire/smoke, or it should be stated that the particles are ‘unlocked’ for Matt Dusek, since it was made for them.