Seth looked upwards and watched how the formation of a dark and golden group of clouds, began to behave differently. There seemed to be a golden cluster of lightning being generated inside of it, getting ready to be discharged and destroy the whole area with a lightning storm.
Seth realized that he would have to either teleport or defend against that complicated all-encompassing attack. Teleporting away would actually cost him a lot of Mana, since every time he did that, he was not only shifting his body position in space, but carrying Serene alongside. However, staying behind could actually cost him more than just a chunk of his big Mana pool, so after weighing down the two possible scenarios, he already knew what to do.