The ★ StatTrak™ Gut Knife | Stained (Well-Worn, WW) is the StatTrak™ copy of this skin — the same Covert ★ finish, the same look, with a kill counter built into the model. The blotchy, discolored look on this finish comes from lemon and mustard dripped onto the
blade rather than any painted artwork. Well-Worn runs 0.38–0.45 on the float scale and shows its age plainly across the finish, which is what keeps it affordable.

What StatTrak™ changes about the price of the Gut Knife | Stained

What the counter tracks is confirmed kills, shown as a running total on the model itself. It is tied to the item, not to the owner, so the number follows the skin from inventory to inventory and only ever goes up. A StatTrak™ Swap Tool moves a count between two StatTrak™ items of the same type, which is as close to a reset as the game allows.

Where a StatTrak™ copy comes from

The StatTrak™ premium comes from scarcity: far fewer copies exist at the same finish and exterior. It is the finish and the float that set the figure, though — the kill count on a given copy barely moves it either way.

FAQ

Stained comes from a wide spread of cases instead of one collection, with the CS:GO Weapon
Case and Revolver Case among the more recognizable sources. StatTrak™ is settled at the drop: a copy either leaves the case with a counter or never has one, and it cannot be added afterwards.

Can the StatTrak counter on the Gut Knife | Stained be reset?

No. The count only moves one way and stays with the item through every trade and sale. A StatTrak™ Swap Tool moves a count between two StatTrak™ items of the same type, which is as close to a reset as the game allows. It still cannot lower the number.

Does StatTrak change how the Gut Knife | Stained looks?

No, apart from the counter on the model. The finish, the pattern and the float range are identical to the plain version, so at the same exterior the two look the same in hand.