@mikemearls Will there be an edition of unearthed arcana classes balanced for multiclassing, or will that wait for an official release?

— Sylvia (@EthelTheCutie) March 11, 2017

Depends on scope of the changes, but usually we verify those changes with focused, NDA'd testers. #wotcstaff https://t.co/Vb3RjktyQC

— Mike Mearls (@mikemearls) March 11, 2017

@mikemearls And how does one become a NDA tester?

— John Appleton (@jaa0109) March 12, 2017

We pull in people from Adventurers League and DMs Guild. #wotcstaff https://t.co/lLIYK05exF

— Mike Mearls (@mikemearls) March 12, 2017

@jaa0109So like what pool of people from DMsGuild? Content creators that demonstrate an understanding of 5E design? #DroppingHintsMike yes, exactly – we work with DTRPG to look at sales numbers and check out what's doing well #wotcstaff

— Mike Mearls (@mikemearls) March 12, 2017

@ChrisPerkinsDnD Is there an article anywhere online where you show or talk about what tools you use behind your DM screen to run a game?

— Steve Butler (@Steve3Butler) March 14, 2017

Not really. The only tool I use behind the DM screen on a regular basis is my brain. #WOTCstaff https://t.co/NWROnP7Vqy

— Christopher Perkins (@ChrisPerkinsDnD) March 14, 2017

@ChrisPerkinsDnD Is that a licensed WotC product? https://t.co/tt5K2ePBYX

— Kerry Jordan (@kandidkerry) March 14, 2017

No, but I'll give anyone a piece of my mind for free. #WOTCstaff https://t.co/G7MqxMcQNi

— Christopher Perkins (@ChrisPerkinsDnD) March 14, 2017

Proficiency Bonus—the Player's Handbook explains twice how it works (p. 12 & 173–4). Here's the text from one of those places. #DnD pic.twitter.com/3mIpm5nQS0

— Jeremy Crawford (@JeremyECrawford) April 17, 2017

@DeanMSimmonsWhy not use existing word “Expertise” rather than new language “add twice Proficiency”? Clarity is good; stops munchkins in advance. The Expertise class feature itself doesn't use the word "expertise," which has no game meaning. It, too, talks about doubling.

— Jeremy Crawford (@JeremyECrawford) April 19, 2017

@JeremyECrawford #DnD for the second part of the feat, it says add double the proficiency bonus. How does that stack with expertise?

— Oisin Debard (@OisinDebard) April 17, 2017

You never add or multiply your proficiency more than once when you apply it to a roll. For more, see "Proficiency Bonus" (PH, 173–4). #DnD https://t.co/unwjJH4dDX

— Jeremy Crawford (@JeremyECrawford) April 17, 2017

@Jklutts610So for the most part, if your a rogue then the feats are useless If your rogue has 18 skill proficiencies, the rogue has transcended the rules and may ascend to Elysium for an everlasting rest.

— Jeremy Crawford (@JeremyECrawford) April 17, 2017

@fyndhalThis doesn’t answer. Expertise and Feat double Proficiency. The final Prof. is only added once, but do the doublings stack? The rule that I referenced answers your question directly.

— Jeremy Crawford (@JeremyECrawford) April 17, 2017

@ZeromaruXI was reading your excellent article about Tarmalune. I have a question: which gods were worshiped in Tarmalune and Harglast?I was reading your excellent article about Tarmalune. I have a question: which gods were worshiped in Tarmalune and Harglast? The primordials alone were venerated, until contact with Faerun became frequent.

— Ed Greenwood (@TheEdVerse) March 28, 2017

@ChrisPerkinsDnD I haven't played D&D in over 20 years. I want to start again. Should I get a PH and head to roll20?

— Zavier (@exilezavier) March 13, 2017

Sounds good to me! You can also download the basic rules for free on the D&D website. The Starter Set is another good first step. #WOTCstaff https://t.co/zCaW4MQbw3

— Christopher Perkins (@ChrisPerkinsDnD) March 13, 2017

It's settled! I'm DMing my first game on Thursday! @matthewmercer @ChrisPerkinsDnD @Gregtito Any last minute pointers beyond the usual?

— Michael Arnot (@DaBeardedTavern) March 15, 2017

Remember that you can adjust adversaries on the fly if an encounter is too easy or too hard, or if it's taking too long. #wotcstaff https://t.co/QTxvFGV1MP

— Christopher Perkins (@ChrisPerkinsDnD) March 15, 2017