Re Horizon Walker Spells: when casting, do they count against the total number of spell slots for your PC’s level?Yes.
— Jeremy Crawford (@JeremyECrawford) December 15, 2017
OfficialAnswer


Can a battlemaster use his disarming maneuver to take away a component pouch from an enemy?
@JeremyECrawford Can a battlemaster use his disarming maneuver to take away a component pouch from an enemy? Seems a bit cheap, especially since the maneuver says something the opponent is HOLDING, not just wearing.
— Sanderson Tavares (@Sands_Tavares) January 30, 2018
Disarming Attack says you can force someone to drop something they're holding. When it says "holding," it really means holding. #DnD https://t.co/pfitwAZiSF
— Jeremy Crawford (@JeremyECrawford) January 30, 2018

Would you say monk ki and mystics psychic abilities are different from arcane and divine?
@JeremyECrawford @mikemearls I just watched your video on arcane and divine. Great video! Would you say monk ki and mystics psychic abilities are different from arcane and divine? Monk and mystics use their bodies and minds to tap into the weave of magic?
— Scott Badalamenti (@Scottbad88) January 13, 2018
The distinction between arcane and divine magic mostly pertains to spells only. The D&D multiverse is filled with magic that doesn’t fall into any category. #DnD https://t.co/a6H4T5wMYM
— Jeremy Crawford (@JeremyECrawford) January 13, 2018
Also with a celestial pact warlock at what point it there a divine to arcane transubstantiation – or is it like superposition- it can be both divine and non divine simultaneously till it becomes one or the other It remains arcane.
— Jeremy Crawford (@JeremyECrawford) January 13, 2018

What if you true polymorph a vampire?
What if you true polymorph a vampire? @JeremyECrawford
— Luke (@theptlmy) December 19, 2017
True polymorph has no effect on a shapechanger. A vampire has the shapechanger tag. #DnD https://t.co/UJbVCmy1HF
— Jeremy Crawford (@JeremyECrawford) December 19, 2017

Contingency: do you need to maintain concentration on stored spell when Contingency is triggered?
@JeremyECrawford Contingency: if the spell stored requires Concentration, do you need to maintain concentration on it when Contingency is triggered?
— Marc Sharma (@LeMarcSharma) December 19, 2017
The contingent spell stored by contingency doesn't come into effect until its condition is met. When that happens, the contingent spell functions as normal, including its duration. #DnD https://t.co/qMMYI1q84m
— Jeremy Crawford (@JeremyECrawford) December 19, 2017

Find Familiar during combat: Can I roll a Perception check? Do I roll it with the familiar’s Perception modifier?
@JeremyECrawford Find Familiar during combat: " as an Action you can see through your familiar's eyes and hear what it hears "
Can I roll a Perception check? (or not because I've already use my Action?)
Do I roll it with the familiar's Perception modifier, or my own modifier?— Draconis (@DerynDraconis) January 30, 2018
During combat, searching for something requires your action, whether you're using Investigation or Perception. You therefore can't take the Search action and use your familiar's eyes/ears on the same turn, unless you have an extra action from a feature like Action Surge. #DnD https://t.co/8agSiDiWPP
— Jeremy Crawford (@JeremyECrawford) January 30, 2018

What is the range for the Catapult spell?
@JeremyECrawford
What is the range for the catapult spell? The description in Xanathar says 90 ft, but the range says 60 ft. In EE the description also says 90, but the range says 150 ft. #DnD— Carey Sauerbrun (@SauerCarey) December 21, 2017
The catapult spell lets you choose an object within the spell's range and then hurl that object a certain number of feet. The hurl distance is not the same as the range. (The spell's range has been updated in the EE Player's Guide.) #DnD https://t.co/QVgf2D8Qjl
— Jeremy Crawford (@JeremyECrawford) December 22, 2017

Does the extra damage on an attack roll of 20 for Sword of Sharpness get doubled as well?
does the extra damage on an attack roll of 20 for Sword of Sharpness get doubled as well? IE, actually 8d6 since a 20 is also a crit? #dnd Where is the 4d6 coming from? That's not in the DMG.
— Jeremy Crawford (@JeremyECrawford) January 5, 2018
The srd from the WotC site has it at 4d6. Interesting. The DMG is the official source, not the SRD.
— Jeremy Crawford (@JeremyECrawford) January 5, 2018