Drakul barrier

“That’s cheating,” the Sasquatch rumbled, and his voice was angry, terrifying. River came to his feet in a single fluid motion, gathering with him a small tidal wave of magical energy that suddenly crackled and sparkled with static in the air around him. He screamed and slammed both fists down onto the earth, sending out a wave of raw power that I couldn’t have matched at my best—just as the Kodiak bear let out a roar of pain and went flying away and to one side.
Drakul came to his feet, a marble statue clad in scorched shreds of black and white. He whirled toward River Shoulders, smiled, took a step to one side—
—and collided with empty air with an audible sound of impact.
Drakul blinked, this time clearly surprised, and recoiled in the other direction—only to rebound again, as if from the surface of a fun-house mirror maze. He turned toward the Sasquatch, dark eyes narrowing.
“Okay, Mister Dancy Pants,” growled River Shoulders. “Now, let’s see how tough you are.”

Battle Ground Chapter 12, Page 121-122