Onslaught is an Epic Fortnite Harvesting Tool from the Omega set. Onslaught was available via the Battle Pass during Season 4 and could be unlocked at Tier 45.
How-to Get the Onslaught Harvesting Tool
Onslaught is part of Season 4. If that season is still currently in the game, you can obtain this item by purchasing and/or leveling up your Battle Pass.
Onslaught is part of the Omega set! You can find all of the items that belong to it below.