When Lee Shen pounced on the demon Tubian, Hudson detected extremely faint spatial ripples around Lee. This was due to his unnatural speed and the participation of two contradictory forces in one body.
Tanya was not slow to react, but Lee Shen was simply too fast for her to dodge. His open right palm came like a dart and was planted on her face. To not let this woman escape, his forelimbs brimming with coiling energies of Qi and Mana held her in place.
"What the-"
Though Essence was of her liking, she could not avoid detecting the two counteracting forces empowering Lee Shen's body. She was flabbergasted to see a person exploiting these energies, not to mention its efficiency.
(A.N. The Tubians are not innately repulsive to Mana or Qi. It's just that those two forces are deviant forms of Essence and that develops a lethal property only effective on Tubians.
Just letting y'all know.)