Mag Zaroff was the early concept for the antagonist in the video game Jedi: Fallen Order.
In the end, the Second Sister took this antagonist role in the game. A few of Mag’s features can be found in the Dathomirian Nighsister Merrin.
From the book The Art of Star Wars Jedi: Fallen Order:
Wearing a long cloak and walking with calm confidence, she would levitate surrounding objects and use them against her prey. She also had her own ship and was a fierce Jedi hunter. Many of the iconic shapes from her early design ended up transferring to Merrin.
