Although Kahglia's fists, the Death Knight's slashes, Mindle's strikes, and Toz's Fireballs didn't do much to the Blood Fiend, it still seemed to find it mildly annoying and started expending some more effort to try and get rid of the four of them while it charged toward the Alliance.
However, Toz and the others did their best to stall the Blood Fiend for as long as possible, despite barely being able to slow it down.
Since the Alliances' troops should be getting close to their target, Toz spread his perception all the way over using space magic. He wanted to know if it was even worth trying to save everyone.
With how fast the Blood Fiend was, it wouldn't take much for it to catch up. And rather than trying to delay the inevitable, Toz might as well do his best to make sure he and the people he wanted to save could get a headstart on the Blood Fiend into the Void.
And what he sensed made him thankful that he decided to check ahead of time.