Fortnite Season 10 is established and the first new challenges are active for the first week! In this guide We Would like to explain you that the following Rumble Royale Challenge:
Construct structures with the X-Lord outfit in Team Rumble — Fortnite (Rumble Royale)
Build structures with the X-Lord outfit in Team Rumble
The X-Lord outfit unlocks by completing an Rumble Royale mission on Prestige.
Did you unlock the outfit go into a game in the Team Rumble mode, then you just have to build buildings to complete this task.