Galen saw the stance and his mind flashed back to his first trip to Felucia. As Mara moved, he quickly deflected her attacks and spun to face her. Yes, he had encountered this fighting style once before. Shaak Ti had used it against him on Felucia. Before he batted her down and killed her. He remembered her prophetic words of Vader betraying him and that he could be so much more. And then she had flung herself into the sarlaac's gaping maw.
Pulling his mind out of the past, he focused himself and rushed in, letting the Force augment his movements and strikes. He knew Mara would no doubt parry and counter with her own strikes. Feinting to the left, he quickly moved to the right and slashed at her before leaping back. Landing on his feet, he focused once more before hurling his lightsaber at Mara in a saber throw, hoping to catch her off guard. He wouldn't let the blade hurt her, but it didn't hurt to see how she reacted to it either.