Patrick

Patrick is a 900-year-old Witch that gained immortality by gambling with the years of humans.

Background
It was Bobby who first encountered him, and played against him, and lost. This caused Dean to search Patrick out, and Dean found Patrick in a bar talking to a wealthy man with a young woman on his arm. Dean pulled a gun and brought Patrick to the back room, and played him. Dean lost, and they began to look for a way to reverse Patrick's spell.

So they followed him, and witnessed him steal a car. Later, Patrick catched them in his hotel room, and told them its not the chips doing the magic, but him. Dean tried to play him again, but Patrick refused, but instead asked Sam if he wanted to play. Sam refused, and as they were leaving, Patrick gave Sam "the Clap". Sam later returned to play Patrick, and after the break Patrick confronted Sam about cheating. They continued playing when Patrick revealed Dean didn't have much time left. Sam beat him in poker and Dean returned to normal.

Patrick was later forced to play his girlfriend as she wished, and she lost.

Powers

 * Immortality  - Patrick has shown to be immune to at least a few convential means of death. He was able to survive being hit by a car travelling at a high speed. It is also suggested that he could survive being shot, as he said to Dean that he would only feel a "tickle", this however was not confirmed. He has also shown to be immune to aging, claiming to be 900 years old, but looked as if he was in his late 20's or early 30's.
 * Magic - Patrick is a highly skilled witch, being able to use magic to age or youthen others through a game of poker.
 * Reality Warping - Patrick is able to use weak (when compared to other users of this power, such as Gabriel) to alter a person's age, making them older, or younger. Though it is possible that this was just advanced Biokinesis, as aging is part of one's biology. This was seen when he gave Dean, who was at the time 30, the appearence and health of an average 80 year old man. He also made Bobby 25 years older, and later reversed it with only some effort.
 * Biokinesis - By clenching his fist, Patrick was able to make Sam feel an intense pain, forcing him to the ground. He was also able to give Sam a Sexually Transmitted Disease by simply clapping his hands.

Appearances

 * Season 5
 * The Curious Case of Dean Winchester