Heroes, Master Sage Jeremy Crawford has published the Sage Advice article for The Rules of Spellcasting. http://dnd.wizards.com/articles/features/rules-spellcasting Enjoy his Sage Advice!  

“@RosecrownKnight: Any tips for running a campaign with 2 players?” Have stories that appeal to both. Don't play them against one another. — Christopher Perkins (@ChrisPerkinsDnD) March 14, 2015

@gj1492finally: whos the actor in the dungeon master pic 😀 jason alexander? (sorry, driving me MAD, not putting a name to the face) I'm polymorphed in Brian Dennehy — Zoltar Sage Advice (@SageAdviceDnD) March 20, 2015

“@PurpleEconomics: Do you have any superstitions about your dice?” Every one has a tiny god living inside it, silently mocking me. Or not. — Christopher Perkins (@ChrisPerkinsDnD) March 14, 2015

“@GraveyDavey27You’ve been a big inspiration,: I'm getting back into DM-ing tomorrow. Any tips or suggestions?!” Just relax and have fun. You're with friends. — Christopher Perkins (@ChrisPerkinsDnD) March 18, 2015

@AndreasSkogmo "Is Chill Touch affected by cover since it requires a ranged spell attack?" Yes, spell attacks are subject to cover. — Jeremy Crawford (@JeremyECrawford) March 17, 2015

@pukunui81 @JeremyECrawfordWould love your thoughts on keelboat discrepancies. http://bit.ly/1GGdWCQ might be an oversight. really, shifting the price had no big balance issue. I'd go with 300 gp — Mike Mearls (@mikemearls) March 15, 2015