The marking on Merlin's chest turned darker, just like a black mole. However, it gave off a cool aura as Darkness Elements had gathered at that area.
The Spell Models of Dark Mist and Dark Light Realm in Merlin's awareness had begun to absorb Magic Power at a quicker speed because Merlin had succeeded in cultivating Darkness Heart.
Darkness Heart attracted Darkness Elements by nature. Moreover, it could also enhance the power of Darkness-type spells drastically, especially when Merlin possessed the third type of Darkness Heart.
"Let's try it. Dark Mist!"
Merlin instantly cast Dark Mist and at once, the mist shrouded the entire room. The mist also seemed to continue in spreading outward.
The anechoic chamber was quite spacious. However, Merlin's Dark Mist was much stronger than before where its range was only within less than a hundred meters' radius.