"Die... die... die... All of you must die!"
The arrival of Alpha and the others didn't seem to affect the eleven knights. They continued their frantic attack, with each swing of their sharp dragon claws unleashing countless amounts of the Power of Death towards Alpha and his companions.
Upon seeing this, Alpha courageously took on most of the Power of Death, while Delta ripped open a spatial tear to precisely transport the remaining Power of Death into the void.
Delta had come into contact with the Power of Death before. During his daily practice battles with Alpha, he knew very well that even a Space Barrier would be corroded by the Power of Death. It would just last a bit longer.
Considering the huge gap between him and the eleven knights, teleportation was a safer choice.