Blake really tried his best. He used all that he got left in his body to keep his hand straight in the flying humanoid demon's direction. But in the end, his maximum effort could only give him so much when his body was forced so badly past his limits.
The second realm darkness bullet spell that had been aimed directly at the center of the flying humanoid demon's chest deviated from its course and hit the flying humanoid demon's shoulder instead.
The second realm darkness bullet spell flew so fast that it only took the spell a literal blink of an eye to arrive from Blake's hand to the flying humanoid demon's body. Closing any chance for the flying humanoid demon to even react to the spell.