Tales and Chronicles
Jewel of the North, formerly know as vincegetorix
Next episode of Happy Fun Hour.
Mearls tackles the Psychic Warrior!
https://www.twitch.tv/videos/259184994
(Show starts in about 3:05 after a long title screen.)
I read the transcript on Reddit and I must say that I love the direction he's taking with making ''psionic'' sub-classes for other classes with spells rather than the new casting system the full-psion will receive. That means that some players will get to play old concept such as psychic warrior or soulknife by using the PHB spells (and some add-ons) rather than learning a new ''magic'' system that they would only use 1/3 or 1/2 of the time.
I think this also shows that MM tend toward psionic being affected by counter-spell/anti-magic zone etc.