Month 1 https://gladiator.tf/sales?item=Nether%20Wisps%20Taunt:%20The%20Victory%20Lap&at=2022-01-11T18:50:37.637Z

2 @ 12 keys 37 ref

2 @ 13 keys

1 @ 13 keys 20 ref

3 @ 15 keys

1 @ 17 keys 30 ref

Month 2 https://gladiator.tf/sales?item=Nether%20Wisps%20Taunt:%20The%20Victory%20Lap&at=2021-12-11T18:50:37.637Z

3 @ 13 keys

2 @ 13 keys 25 ref

4 @ 15 keys

3 @ 16 keys

Month 3 https://gladiator.tf/sales?item=Nether%20Wisps%20Taunt:%20The%20Victory%20Lap&at=2021-11-11T18:50:37.637Z

4 @ 12 keys 10 ref

1 @ 12 keys 15 ref

1 @ 12 keys 36 ref

2 @ 16 keys

1 @ 17 keys

1 @ 20 keys

https://marketplace.tf/items/tf2/1172;5;u3069

$49.99/1.87=26.73 keys

https://mannco.store/item/440-nether-wisps-unusual-taunt-the-victory-lap

$50/1.72=29.07 keys

Classies: https://gladiator.tf/listings/61d7878ee0cace5f8a59a95d

Buyers at 13k+ suggest sales below that are too low now. Sellers at 18 and 20.

Going to exclude 20 also since a lot of lower ~12 sales are being excluded (and two unsolds at and below that).

Taking 13-17 keys.