Crimson Blaze!
"These undeads are getting on my nerve." Aditya waved his hand as a huge wave of Crimson red flames began surrounding Morgan. Despite getting surrounded by one of the hottest flames that she has ever seen, Morgan didn't show any panicked reaction. Her expression remained calm as seawater.
Within a few seconds, 5 meters high walls of Crimson red flames surrounded Morgan from all directions. All the undeads that came near or in contact with the Crimson flame were instantly turned to ash.
"This is the end, Morgan." As blue lightning flickered constantly around Aditya's body he dashed toward Morgan at his full speed. Current Aditya's speed had reached 577 which is more than enough to match the speed of a third-order.