@Mynock74Forgive me Sir, can you the action surge be used to cast another spell during the same turn one has already been cast? Yes, Action Surge can be used to do anything an action can normally do.

— Jeremy Crawford (@JeremyECrawford) September 22, 2014

@Mynock74Thank you. I guess I was wrong. I thought normally you could only cast a bonus and cantrip during same turn. That’s the rule when you cast a spell that has a casting time of “1 bonus action.”

— Jeremy Crawford (@JeremyECrawford) September 23, 2014

@Mynock74reaction< bonus

— Jeremy Crawford (@JeremyECrawford) September 24, 2014

@Mynock74like 2nd weapon is a bonus action, ok. Can other spell casters gain an additional action w/out being a fighter? magic item? The most common way for a spellcaster to do more on a turn is casting a bonus action spell. Also, the haste spell.

— Jeremy Crawford (@JeremyECrawford) September 24, 2014

@JeremyECrawford is elemental adept the only feat you can take more than once?

— Nicholas DeVito (@NDevito1) September 25, 2015

Elemental Adept is the only feat in the PH that you can take more than once. #DnD https://t.co/7KfvTEBd4s

— Jeremy Crawford (@JeremyECrawford) October 6, 2015

@jaa0109 @NDevito1 What about Resilient?
The Resilient feat can be taken only once.

— Jeremy Crawford (@JeremyECrawford) October 6, 2015

@ReubenFontana “Elemental nature differs between many elementals (mephits breathe, djinn sleep, etc.). Is that difference intentional?” Yes

— Jeremy Crawford (@JeremyECrawford) March 5, 2015

@mikemearls @JeremyECrawford if a mount takes the Disengage action does the rider provoke opportunity attacks? Wording of PHB 198 (1/3)

— Robert W.V. Mitchell (@ChewBobcca) May 28, 2015

No, since the mount isn't provoking them and the rider is being moved by someone else's movement (PH, 195). https://t.co/3ywGHee2Id

— Jeremy Crawford (@JeremyECrawford) May 30, 2015

@JeremyECrawford Monk's Unarmored Move, does it increase Aaarakocra's fly speed? Speed seems to be walking speed, it's a bit confusing.

— JohnnyD (@JohnnyD1722) July 1, 2015

Unarmored Movement is intended to increase a monk's innate speed, including an aarakocra monk's flying speed. https://t.co/m9RjAp68GK

— Jeremy Crawford (@JeremyECrawford) July 7, 2015

@stramesDoes a fighter with an increased crit range (say 19-20) always hit on a 19? Or does the fighter miss if the AC is too high? Only a roll of 20 is an automatic hit, unless a feature says otherwise.

— Jeremy Crawford (@JeremyECrawford) September 17, 2014

@stramesFYI, there is a debate going on http://tinyurl.com/llbcfgq And I fear that ‘unless feature says otherwise’ will fuel not settle I had a brain glitch and was thinking of a theoretical crit. range increase. Specifics: Improved Critical does score a hit on a 19.

— Jeremy Crawford (@JeremyECrawford) September 17, 2014

@ElesthorCan Great Weap Mstr & Polearm Mstr be combined (take -5/+10 with the bonus attack) and do you add the mod. to the damage? Yep, you can combine them, and you do add your modifier to the damage.

— Jeremy Crawford (@JeremyECrawford) September 2, 2014