The Falchion Case is a weapon case released in 2015 that holds 16 skins, from Mil-Spec Grade to Covert, with knives as the rare special item. SkinsMonkey lists every Falchion Case skin with prices for each wear level.
The falchion case was released alongside the Operation Bloodhound update to CS2(CS:GO). Initially, the case was only available to the season pass holders, but was later released to other players as well.
The container holds 17 skins designed by the CS2(CS:GO) community, with a chance to get a special rare falchion knife in one of the 13 finishes.
To open the container you will need a falchion case key. When you open the case, you can find one of these skins:
The 16 weapon skins from this container make up The Falchion Collection, the set that counts in trade-up contracts. The knives it drops as rare special items belong to no collection.