@cjatudre: OA w/ spells – if i am using vampiric touch or similar, can I use it or the OA? if i am already concentrating on it
You need a feature like the War Caster feat to cast a spell in place of an opportunity attack.

— Jeremy Crawford (@JeremyECrawford) June 9, 2015

@BrailSays Leomunds Tiny Hut seems like the perfect siege spell:Ritual,fire arrows out of it,remain safe?
The intent is that objects can move (emphasis on "move") out of the dome—usually on a creature—not be shot out. @ChrisPerkinsDnD

— Jeremy Crawford (@JeremyECrawford) June 9, 2015

@be_ryan13does 5e grapple need an attk roll or just the opposed checks? My group is getting into a discussion about it Grappling (PH, 195) doesn't require an attack roll. Some monsters, however, grapple targets via an attack roll. @mikemearls

— Jeremy Crawford (@JeremyECrawford) June 9, 2015

@JeremyECrawford In 5e, when choosing the drow subclass, do they lose the sword and bow proficiencies from elf due to the drow profs? I'm thinking they lose them. As an application of the "this is more specific" rule.

— FluxPoint (@FluxFrog) June 9, 2015

@FluxFrog Each elf subrace has its own Weapon Training trait. The high elf and wood elf ones happen to be the same.

— Jeremy Crawford (@JeremyECrawford) June 9, 2015

@FluxFrogIt certainly is! Thanks. When I got to drow, I happened to remember “elf weapon training.” Mea culpa. Thanks again.
Sure thing!

— Jeremy Crawford (@JeremyECrawford) June 9, 2015

In real life, bad guys usually win. When writing fantasy stories, it’s fun to even the score and give evil its comeuppance. It IS “fantasy.”

— Ed Greenwood (@TheEdVerse) May 29, 2015

@ChrisPerkinsDnD Any chance wotc will create a spell list sorted by schools of magic? Is there a wotc conspiracy against the Necromancers?

— Drawrof (@PeterForward) June 8, 2015

No, it's just that necromancers don't like sharing their spells. We have to pry them from their cold dead hands. https://t.co/bOGrHg256P

— Christopher Perkins (@ChrisPerkinsDnD) June 8, 2015

@ChrisPerkinsDnD any advice for using historical figures/events as the basis for NPC and campaigns?

— Beer Baron (@BeerBaronWA) June 8, 2015

By all means, do it. It's a good way to create memorable NPCs and give your campaign resonance. https://t.co/enSGZ2Xj0I

— Christopher Perkins (@ChrisPerkinsDnD) June 8, 2015

@ChrisPerkinsDnD does studded leather count as non-metal armour for druids?

— Rich Green (@richgreen01) June 8, 2015

The studs in studded leather armor needn't be made of metal. https://t.co/1gFVDcohcw

— Christopher Perkins (@ChrisPerkinsDnD) June 8, 2015

@ChrisPerkinsDnD does studded leather count as non-metal armour for druids?

— Rich Green (@richgreen01) June 8, 2015

In my game, no. https://t.co/gJoEi8tozc

— Christopher Perkins (@ChrisPerkinsDnD) June 8, 2015