Coop is very sensitive and cares for Phoebe very much he acts like Leo did in the first four seasons of Charmed.
Beaming: Coop can teleport through his ring
Persuasion: Coop purseades people to find love with his ring.
Heart Balls: Heart balls are powerful balls of love wich can make you get thrown back to a wall an offensive way of cupids to protect them selves.
Coop isn't really in season 9 much only when he needs to be or he makes cameo appearences