Storm Shifter
Shapeshifter is Mystique’s Marvel Series Built-In Emote. It can only be done by said outfit, and could be obtained as a reward from Level 86 of Chapter 2 – Season 4 Battle Pass.
The emote give you the ability to take the appearance of the enemy of you have recently eliminated.
Fortnite is a co-op survival shooter developed by People Can Fly and Epic Games, which gained its popularity through a free-to-play standalone mode based on the Battle Royale genre, Fortnite Battle Royale. The third-person shooter was released worldwide on July 25, 2017, for PlayStation 4, Xbox One, and Windows. A Chinese version appeared later with restrictions.
Fortnite Battle Royale was released on September 26, 2017. In March 2018, Fortnite Battle Royale was also released for Apple iOS devices as part of an invite event. The Android version of the Battle Royale offshoot was released in early August 2018, and Fortnite Battle Royale was released for Nintendo Switch in June 2018. A version for the Xbox Series X and PlayStation 5 became available on their respective release days.