How to detect a player being a shadow?
The challenge is relatively simple, since you normally already had to transform in shadow to validate one of the proposed challenges. When you are a shadow, you can't use weapons, but, to overcome your opponents, you have a few different characteristics, with boosted jump and speed, while having the possibility of seeing nearby enemies.It is this small power that interests us, since you will have to use it 10 times for the challenge to be validated. It is therefore advisable to go to a place where there are many players, to quickly transform yourself into a shadow (by being eliminated), then to use enemy detection. Even though it takes 35 seconds to search for detection, you should be able to use it 10 times in one game, or even less if you detect multiple players at the same time.
Here is an overview of the display when a player is detected: