When Sargan realized he had unlocked the Mirage ability, he was incomparably excited.
As a member of the Bach Clan, he knew what he could do with this ability. He could show illusions.
He could show illusions to people now. Using those illusions, he could figure out the ambitious desire in his opponent's heart.
He could even construct a scenery from his imagination and confuse his opponent. The special part of this illusion was that the details would be filled not by the user but by the opponent.
The user was only going to trigger the mirage. It would depend on how the opponent would be viewing the situation.
There are numerous instances in a person's life where he unconsciously wishes for things to go his way. Sargan's Mirage ability would show him such a future and make him act accordingly to it.
Sargan would naturally be aware of what his Evil Eye was showing to his opponent and the real situation as well.
