In 4th Edition "Dungeons & Dragons", Psions are a Psionic Controller class. Unlike most 4th edition classes, Psions do not have any encounter attack powers, instead, they have a pool of power points, which can be used to augment at-will attack powers. Like encounter powers, power points are recharged by a short rest. A preview was presented in "Dragon Magazine" #375 in May 2009, and the class is among the classes included in the "Player's Handbook 3", which was released on March 16, 2010.