In update 12.10, Fortnite has added a new defensive item: the Proximity Mine. Of rare quality, you'll find them in packs of three. The item lands on the ground and triggers when an enemy passes over it, inflicting 50 damage. The mine will be a great help in closed areas and will allow you to set many traps.
Internet users have already found how to improve its use: by triggering and then launching it. The item is also doing a lot of damage to constructions.