@Shippendale @JeremyECrawford is the Druid’s element. wildshape limited to the CR5 elementals or could he/she turn into an Invisible Stalker?
yes, specifically names those four elemental. invisible stalker is not standard option

— Mike Mearls (@mikemearls) August 11, 2015

@JeremyECrawford how many bonus actions can be taken by one player in a round?

— Dave Clark (@bedirthan) August 12, 2015

A bonus action is "an additional action on your turn" & "you can take only one bonus action on your turn" (PH, 189). https://t.co/Yf2sSAEh8y

— Jeremy Crawford (@JeremyECrawford) August 12, 2015

@bedirthani will complete my re-read of the PHB before my next edition of #AskCrawford
I hope you enjoy it! And don't sweat it if you miss something. I constantly have to look things up.

— Jeremy Crawford (@JeremyECrawford) August 12, 2015

@AndruCdoesn’t that wording imply it can be any action? Eg an Attack?
See the full rule on page 189 for how to use a bonus action. @bedirthan

— Jeremy Crawford (@JeremyECrawford) August 13, 2015

UPDATE

Looks like I’ll be visiting the D&D gaming area at PAX from 2-3 PM on Saturday and Sunday. Y’know, in case you need CPR or something.

— Christopher Perkins (@ChrisPerkinsDnD) August 25, 2015

My PAX schedule: Fri 8:30 pm: Acq Inc., Benaroya Hall Sun 11:30 am: Worlds panel, Sea Gate Theater Sun 6:30 pm: DM panel, Sasquatch Theater

— Christopher Perkins (@ChrisPerkinsDnD) August 24, 2015

Yus, I know what I’m doing Friday night. =) https://t.co/dN5Ba28q1J — Jon Robertson (@FotoGuy79) August 24, 2015

@ChrisPerkinsDnD thanks for posting this. You aren’t listed as a panelist on guidebook for the sun 11:30. You will be signing after worlds? — Anthony (@Nexum7) August 24, 2015

I was left off the list of panelists because I’m strange and off-putting. https://t.co/uu0fdRHFyb — Christopher Perkins (@ChrisPerkinsDnD) August 24, 2015

I’m also participating in a joint MAGIC/D&D world-building panel at PAX. That’s a first for us, BTW. Happy to sign books & badges afterward. — Christopher Perkins (@ChrisPerkinsDnD) August 19, 2015

My “Art of the DM” panel at PAX will be very different from previous years. If you think you know all my DM secrets, think again! #bwahaha — Christopher Perkins (@ChrisPerkinsDnD) August 18, 2015

@ChrisPerkinsDnD Howdy Chris! I can’t an answer posted anywhere… Is the 2015 Pax Prime AI game gonna be streamed on Twitch? — Jim Mortensen (@jimmortensen) August 18, 2015

I believe the answer is YES. https://t.co/nKkU2oW47y — Christopher Perkins (@ChrisPerkinsDnD) August 18, 2015

@gaaran00bDo you need anything other than knowledge of the spell to make a wand or magic item? Do Tinker Tools help at all?
i'd let tinker tools help – generally, you should know the spell or have access to someone who can cast it

— Mike Mearls (@mikemearls) August 11, 2015

@JeremyECrawford The rule on surprise addresses movement, actions, and reactions, but bonus actions aren't mentioned. Is this intentional?

— An Abrasive DM (@jackAbrasion) August 12, 2015

"Anything that deprives you of your ability to take actions also prevents you from taking a bonus action" (PH, 189). https://t.co/kgCZxsQV6U

— Jeremy Crawford (@JeremyECrawford) August 12, 2015

@jhansonxi @JeremyECrawfordIs a monk’s Shadow Step a spell? Does it cancel Invisibility?
not a spell IIRC

— Mike Mearls (@mikemearls) August 11, 2015

@gaaran00bwhat do you do with a kill joy player? I have one who does nothing but complain about his bad rolls and calls himself useless
oh man, tough one. try talking about the problem. don't threaten, just say "hey, is what you do fair to the entire table?"

— Mike Mearls (@mikemearls) August 11, 2015

@JeremyECrawford Can a rogue use evasion if he is surprised? The rule states that "If you’re surprised, you can’t move or take an action…"

— AFA Brouwers (@andriecycle) August 12, 2015

A surprised rogue can use Evasion, since that feature doesn't require the rogue to take an action or move somewhere. https://t.co/f43j2dcjrl

— Jeremy Crawford (@JeremyECrawford) August 12, 2015