The Mind avatar!
When Merlin stared at this person who looked exactly like him, he suddenly broke out in laughter. This Mind avatar was just like an extension of his mind. Every movement of the avatar could be controlled by Merlin.
In short, it looked rather unique!
Fortunately, Merlin had achieved the stage of the Illusory Heart by now, and could control his opponent's mind. Therefore, when faced with his own peculiar Mind avatar, he was merely somewhat astonished, following which he relaxed and got used to it.
"No matter how far you are from this Mind avatar, you'd be able to feel it. In other words, he's another you. Once you die, this Mind avatar will die as well."
Merlin bobbed his head. This Mind avatar was Mind Power after all, and its force was the same as Merlin's. It possessed the state of the Illusory Heart as well and was a great help to the current Merlin.