Sage's Cultivation: Mage in Cultivation World

Lucas was the regarded immortal mage, attained the title of a Sage as he was already all-knowing in the field of magic.But after stabbing himself with a legendary sword, hoping to die, he was transported into a different world; returned to his youthful appearance.I'm still alive. He sighed, realizing he failed to die.But after some research, he discovered the world he got transported to was filled with cultivators that could also attain immortality by cultivating!This means he won't be the only immortal! Thus, he decided to cultivate to ascend to the upper heavens and meet some immortals.A mage in the cultivation world! What are the chances of having some twisted cultivation when you're not normal to society?His mana became prominent to his cultivation