@JeremyECrawford Could an enemy Goblin Boss use its Redirect Attack reaction to swap places with a goblin PC or PC-allied NPC?

— Brandon Weigel (@crkdgt) September 20, 2017

The goblin boss's Redirect Attack doesn't specify whether the affected goblin is a friend or foe. It works on any goblin within 5 ft. #DnD https://t.co/sl6orcIZcS

— Jeremy Crawford (@JeremyECrawford) September 20, 2017

That’s what I was hoping to hear! Lots of terribly amusing scenarios that can play out because of this.vYes, it's wonderfully bonkers.

— Jeremy Crawford (@JeremyECrawford) September 20, 2017

@JeremyECrawford @mikemearls current group is arguing about rules re: cover. It's being argued that three people in front of you in a tunnel only grants you +2 to AC. Pointed out page in the DMG, people still arguing. Can you offer some insight?

— Erin Ramsay (@Rawr0924) January 30, 2018

A creature provides half cover, regardless of that creature's size. A DM might rule that a group of creatures provides three-quarters cover. If you use miniatures, the Dungeon Master's Guide provides further guidance on this point (DMG, 251). #DnD https://t.co/Ghb5ON0446

— Jeremy Crawford (@JeremyECrawford) January 30, 2018

Even if the size difference between two creatures is rather significant (for example, halfling hiding behind goliath), it’s still just half-cover? Yes.

— Jeremy Crawford (@JeremyECrawford) January 30, 2018

That seems kinda unfair, considering the size difference in that example… when you hide behind someone whose torso is bigger than your whole body, it seems you should get 3/4 cover at least, not just half…

— Joshua H. (@chaoswolf1982) January 30, 2018

The cover rule on creatures represents the fact that creatures are in motion (they're not fixed cover), they don't fill their spaces (unless they're gelatinous cubes), and you're often behind a mix of torso and limbs (there are gaps). #DnD https://t.co/CmeGj7CBuv

— Jeremy Crawford (@JeremyECrawford) January 30, 2018

@JeremyECrawford
If you take Elven Accuracy as an elf/half-elf, but then Magic Jar into another humanoid that is not a Half-Elf/High Elf/Wood Elf, do you lose the benefits of the feat?
If so, do all racial feats work this way? What about the Prodigy feat?
#sageadvice

— mario (@S3MPIT3RNO) January 30, 2018

Curious what happens if you lose the prerequisite for a feat? See the rule on feats (PH, 165). Hint: a feat does nothing until you regain the prerequisite.If that’s what you call a hint, I want you as my DM when it’s time to solve a riddle! #DnD https://t.co/6bd5i2j5U6

— Jeremy Crawford (@JeremyECrawford) January 30, 2018

pic.twitter.com/DMSzYPwQGw

— Jeremy Crawford (@JeremyECrawford) January 30, 2018

@JeremyECrawford I cast Invisibility on myself. I cast Invisibility on myself again, before the duration of the first spell lapsed. Did I become visible?

— Eric Green (@quadhund) January 12, 2018

A concentration spell ends the instant you start casting another concentration spell, and a spell takes effect when its casting ends. If you cast invisibility in succession, you're visible during the 1-action casting time—effectively for a split second or so. #DnD https://t.co/thzQYzDT0U

— Jeremy Crawford (@JeremyECrawford) January 12, 2018

Wasn't it 3 seconds for an action, 2 seconds for a bonus action and 1 second for reaction with movement in between per turn? You'd be visible for longer than a split second there.

— Ilya Donskikh (@IlyaDonskikh1) January 12, 2018

A round in D&D lasts for about 6 seconds. None of the things that take place during a round—actions, movement, and the like—have official amounts of time assigned to them. #DnD https://t.co/tufUKubsvF

— Jeremy Crawford (@JeremyECrawford) January 12, 2018

1 action = 1 split second, word of god confirms Don't forget the last part of the sentence: "or so."

— Jeremy Crawford (@JeremyECrawford) January 12, 2018

@JeremyECrawford If a wizard has 18+ Con after taking the Durable feat, how much HP do they recover per hit die during a short rest?

— Eric Do (@derekleeketchum) December 19, 2017

The Durable feat's second benefit works as written regardless of the die used for your Hit Dice. #DnD https://t.co/kYzDDldyz9

— Jeremy Crawford (@JeremyECrawford) December 19, 2017

Thank you so much, this scenario has confounded me for longer than I care to admit XD No problem!

— Jeremy Crawford (@JeremyECrawford) December 19, 2017

Regarding “Breaking Up Your Move”: is it possible to attack (possibly multiple times) in the middle of a horizontal or vertical jump?Yes, that's doable.

— Jeremy Crawford (@JeremyECrawford) January 26, 2018

My pleasure!

— Jeremy Crawford (@JeremyECrawford) January 26, 2018