Kayden had his domain destroyed several times, but the amount of mana he had available was very large. This allowed him to place dozens of wear barriers and dilate the surrounding mana.
The spells didn't stop coming out for about five minutes, and Kayden had to spend 50% of all available mana for the spells to stop coming out. When he calmed down, he saw Bruno desperately trying to gather mana on the other side.
"A good spell," Kayden commented before placing dozens of pentagrams in front of him and resuming his attacks without stopping. Brunno's barriers were no longer as strong and durable as before. Every minute, an attack would pass through the barrier and cause Brunno to suffer some damage. At first, they were just thin, weak cuts that did not pose any harm to Brunno's evolved body.