There are several threats on the LEGO Fortnite map that you’ll have to deal with, and patch v30.10 introduced Storm-Wild Brutes. In addition to having a larger fight within them, you’ll also have to confront these powerful creatures to unlock specific achievements.
LEGO Fortnite All Storm Wild Brute Boss Fights (Expert Mode Trophy)
Storm-Wild enemies can be toggled on and off via your world’s settings. If you’re in Expert Mode in LEGO Fortnite, you’ll need to keep an eye out for them, including the Brutes. When you encounter these powerful creatures, you’ll need to have all the necessary tools at hand to avoid being knocked out and losing some of your gear, depending on the settings that apply.
Storm-Wild Brutes can be found in LEGO Fortnite's Grasslands. Trees and greenery populate this biome. Keep wandering around the Grasslands and you'll eventually come across a Storm-Wild Brute.
As you venture into other biomes, such as Dry Valley and Frostlands, you’ll encounter Storm-Wild Brutes specific to those biomes. While they’ll be similar encounters, you won’t be able to unlock the Grasslands Trophy by defeating a Brute from a different biome. However, you will need to confront them eventually, especially if you want to unlock all of the Expert trophies in LEGO Fortnite.