https://www.pcgamer.com/fortnite-61-patch-adds-new-chiller-weapon-custom-playground-options/

Fortnite’s latest patch has broken free from Epic’s servers like an Arctic ice-shelf in summertime, bringing multiple new features for both Fortnite’s Battle Royale and Save the World modes.

Foremost amongst version 6.1’s updates is the “Chiller” weapon, a common trap new to Battle Royale that will freeze the feet of anyone who it’s directed toward. This can be used to wrong-foot an a opponent, or on an ally or even yourself to quickly slide away from an enemy for a cool escape. The trap can be placed on floors, walls, or ceilings, and drops in stacks of 3 in treasure chests, supply drops, supply llamas, etc.