@JRobsonSF Could a long lived elf or half-elf use WIS instead of INT in a History check? Like, he didnt study history, he LIVED it. I'd allow that, if it was a key part of the character's background. Not just for any elf, though.

— Mike Mearls (@mikemearls) March 12, 2016

@Apsco60If a ranger has survival skill expertise from rogue and is in his/her Favored terrain, do you double the proficiency twice? nope, double once

— Mike Mearls (@mikemearls) March 15, 2016

For any roll, your proficiency bonus can be added only once and multiplied only once (see PH, 173-4). #DnD https://t.co/mtnZl22y51

— Jeremy Crawford (@JeremyECrawford) March 21, 2016

@JeremyECrawford if a spell knocks you back into a wall (eldritch blast with repelling feature) when standing next to the wall what happens?

— Dave Hanlon (@davelhanlon) February 23, 2016

You stop moving. #DnD https://t.co/1QQNiTwc1u

— Jeremy Crawford (@JeremyECrawford) February 27, 2016

@davelhanlon so there is no additional damage taken ? No, unless a DM or a game feature says otherwise.

— Jeremy Crawford (@JeremyECrawford) February 27, 2016

@davelhanlon You're a fellow #DnDawesome , thank you for your feedback. Been rolling d20’s now for almost 30 years old timer! I started playing about 37 years ago.

— Jeremy Crawford (@JeremyECrawford) February 27, 2016

@davelhanlonback when we had to use crayons on our dice to fill in the numbers to see them! Exactly!

— Jeremy Crawford (@JeremyECrawford) February 27, 2016

@davelhanlon in my games, treat it as falling

— Mike Mearls (@mikemearls) February 25, 2016

@breebheiss @ChrisPerkinsDnD @JeremyECrawfordGaseous form vs. Gust of wind? I'd rule 6d8 force damage, Con save for half

— Mike Mearls (@mikemearls) February 29, 2016

@seanbonneyDoes grapple count as an attack for triggering reaction feats like Tempest domain’s Wrath of the Storm? #dnd yes

— Mike Mearls (@mikemearls) February 28, 2016

@JeremyECrawford Are elves immune to the paralyzing touch of ghasts too, or just ghouls? #DnD

— Robyn Kozierok (@robynkoz) February 29, 2016

Elves are, indeed, immune to the paralysis of ghouls but not ghasts. #DnD https://t.co/Pr5RlmQuMI

— Jeremy Crawford (@JeremyECrawford) March 1, 2016

@jeremyecrawford I have an elf in my first session ever, so I was wondering which rule or skill is responsible for that. BTW we play #DnD5e.

— Dania Meier (@KairinDenrei) March 2, 2016

The fact that an elf is immune to a ghoul's paralysis is stated in the ghoul's stat block. #DnD https://t.co/dh9BOG5gDK

— Jeremy Crawford (@JeremyECrawford) March 2, 2016

@weracketeer @ChrisPerkinsDnD if a PC becomes paralyzed do they ‘freeze’ in place where they stand, or fall prone? I think the rules assume freeze in place

— Mike Mearls (@mikemearls) February 26, 2016

The description of the paralyzed condition says nothing about falling prone, ergo, the creature "freezes" in place. https://t.co/OitNvRtOub

— Christopher Perkins (@ChrisPerkinsDnD) February 26, 2016