@JeremyECrawford we know that Disintegrate will kill a Half-Orc if it reduces them to 0, but what about massive damage? My reading is that the Half-Orc may use their Relentless Endurance trait to stay at 1 hit point instead, my friend says they die immediately. Who's correct?

— Jeremy Graten (@DockOfManyBards) October 11, 2018

Massive damage kills you outright, which is another way of saying instantly (see "Player's Handbook," p. 197).

The half-orc's Relentless Endurance trait says it doesn't work if you're killed outright. #DnD https://t.co/NL9nNZY5c7

— Jeremy Crawford (@JeremyECrawford) October 11, 2018

Thank you for the swift reply. The Half-Orc’s Relentless Endurance trait won’t save them, but would a Shadow Magic Sorcerer’s Strength of the Grave feature as that does not say “die outright” ? That's correct.

— Jeremy Crawford (@JeremyECrawford) October 11, 2018

@JeremyECrawford Is it your intent that when using Mantle of Majesty (Glamour Bard 6th level feature), you are technically casting a bonus action spell (command), and so may not use your action to cast spells other than cantrips?

— Transcendental (@IdoZemach97) October 18, 2018

If you cast a spell as a bonus action, you are indeed in the domain of the rule on casting a spell as a bonus action. #DnD https://t.co/OsfQTpB6Sq

— Jeremy Crawford (@JeremyECrawford) October 18, 2018

That doesn’t answer the question, do class features count as spells?

— 🎃Spooky Bradford🎃 (@Bradford_Am) October 18, 2018

If a class feature says you're casting a spell, you're casting a spell.

If a class feature says nothing about casting a spell, you're not casting a spell when you use the feature. #DnD https://t.co/kfOAkS8yN4

— Jeremy Crawford (@JeremyECrawford) October 19, 2018

Same applies for legendary actions, yes?

— StoryGirl (Jemma) – Looking for media/IT work (@BlueJayGliding) October 19, 2018

If anything in D&D says you're casting a spell, you're casting a spell. #DnD https://t.co/866j16EKVF

— Jeremy Crawford (@JeremyECrawford) October 20, 2018

@JeremyECrawford when using Hide in Plain Sight, does the Ranger have to hide immediately after creating their camouflage?

— Armando Doval (@armando_doval) October 11, 2018

When you use the ranger's Hide in Plain Sight feature, you spend 1 minute camouflaging yourself and then immediately hide. #DnD https://t.co/ZLx0FfOZVV

— Jeremy Crawford (@JeremyECrawford) October 12, 2018

There is a difference between "within 5 feet" and "within reach." I take that "within 5 feet" is always 5 feet regardless of the reach.

— Richard Durocher (@rdurocher) October 15, 2018

"Within 5 feet" means within 5 feet.

"Within reach" means within reach.

Sometimes a game will tell you that some words have unusual meanings in its rules. If the game doesn't tell you that, the words are being wonderfully ordinary and have their standard meanings. #DnD https://t.co/jS00uCfkLc

— Jeremy Crawford (@JeremyECrawford) October 15, 2018