@JeremyECrawford
If a player is averting their gaze from a Medusa, can they still target it with spells that don't target, eg sacred flame?

— Michael Pogrebinsky (@Pogman42) November 22, 2016

A spell says if you must see its target. If it doesn't, you don't. #DnD https://t.co/I499H6Rj0k

— Jeremy Crawford (@JeremyECrawford) November 23, 2016

@JeremyECrawford For the assassinate feat, does the auto crit only happen if there is a surprise round, or can it trigger from stealth?

— Patrick Wolthausen (@Pattyotool1) May 10, 2017

The Assassinate feature turns a hit on a surprised creature into a critical hit. "Surprised" refers to the surprise rule (PH, 189). #DnD https://t.co/6L2xd4C43O

— Jeremy Crawford (@JeremyECrawford) May 10, 2017

@JeremyECrawford I understood that you could only cast one spell and one cantrip in a turn.

— Mark Drury (@Icarusflyer) May 10, 2017

The rule on bonus action spells applies only when you cast a bonus action spell. #DnD https://t.co/9Nl3uWKe3h

— Jeremy Crawford (@JeremyECrawford) May 10, 2017

You are a creature. Can you see yourself? If yes, you can choose yourself if you must target a creature you can see. #DnD https://t.co/cNH6TkXZeA

— Jeremy Crawford (@JeremyECrawford) May 2, 2017

@SINemirovsky @butlerlog @pitchfrenzy @thedevelopingdm @JeremyECrawford If someon were blinded, but touching the target, i wouldnt count that, though. You?

— Harold Large IV (@HaroldLargeIV) May 3, 2017

If an effect requires you to see the target, touching the target isn't a way to bypass that, even if the target is yourself. #DnD https://t.co/f3puT3ihig

— Jeremy Crawford (@JeremyECrawford) May 3, 2017

@JeremyECrawford Book of the Tome Feature states you can take Cantrips from any classes spell list. Would you count Mage Hand Ledgermain?

— Deven Morgan (@djmor693) January 13, 2017

A cantrip is a spell. Mage Hand Legerdemain is a class feature. Spell ≠ class feature #DnD https://t.co/KN1n2utZIy

— Jeremy Crawford (@JeremyECrawford) January 14, 2017

@Dan_Dillon_1Some dispute over Evasion (description vs rules text). Does Evasion work on non-area effects (e.g. Hellish Rebuke)? Yes.

— Jeremy Crawford (@JeremyECrawford) May 8, 2017

@Dan_Dillon_1 No problem! Both sentences—the descriptive and the prescriptive—are correct. One is broader than the other.

— Jeremy Crawford (@JeremyECrawford) May 8, 2017

@JeremyECrawford PC casts Confusion on Morkoth It saves, spell reflects on caster. If caster fails save, is concentration maintained or not?

— Jason Sandeman (@Jason_Sandeman) January 24, 2017

You can end concentration on your spell at any time (no action required). See "Concentration" (PH, 203). #DnD https://t.co/vcQUkTppLN

— Jeremy Crawford (@JeremyECrawford) January 30, 2017

@JeremyECrawford Minor Conjuration errata means that you can no longer use conjured tools (chisel,sissors,saw,pestle) that damage materials?

— Gordons (@Zifnub) November 24, 2016

"Damage" is a game term, involving the loss of hp. Only relevant for Minor Conjuration if the DM has you roll damage for the object. #DnD https://t.co/Uw4ZGjrtkD

— Jeremy Crawford (@JeremyECrawford) November 24, 2016