Finishing in the top 100 of the 2021 Halloween Event leaderboard is the only way this gun was ever handed out, and that window closed years ago. As a unique-rarity trophy it can't be unboxed, traded up for, or earned any other way now, so supply is fixed and tiny. The card shows no tracked price history, which fits an item whose value is set case by case between owners. If you're hunting one, expect to negotiate directly; if you own it, you set the terms.
Questions players ask
How much is Blue Harvester worth?
There is no stable price: trophies rarely change hands and deals happen privately. The number on value lists is symbolic.
Can you still get Blue Harvester?
No. It was awarded for a leaderboard place in an event and is not given out again.