@NiCk_DawnfallA vampire can automatically hit a grappled target, that condition excludes an attack roll? no criticals possible? Which vampire ability are you referring to?

— Jeremy Crawford (@JeremyECrawford) April 26, 2017

@NiCk_Dawnfall @JeremyECrawford No, Bite says the target must be be "a creature that is grappled by the vampire" (among other things). It doesn't say you don't need to roll

— Armando Doval (@armando_doval) April 27, 2017

@armando_doval @NiCk_Dawnfall Armando is correct.

— Jeremy Crawford (@JeremyECrawford) April 27, 2017

@JeremyECrawford Can I use my second action from Action Surge for a ready action?

— Charles Sandusky (@ccsandus) May 10, 2017

Action Surge gives an extra action, which can do whatever an action can do, including the Ready action. #DnD https://t.co/dGG50rqOxI

— Jeremy Crawford (@JeremyECrawford) May 10, 2017

@JeremyECrawford Poison. retains potency for 1 mn before drying * Injury. remains potent until delivered through a wound * What's right ?

— AideDD (@aideddorg) November 29, 2016

The poison in the PH does what it says, and the poisons in the DMG do what they say. One has no bearing on the other. #DnD https://t.co/zSiaoprSUP

— Jeremy Crawford (@JeremyECrawford) November 30, 2016

@weracketeerif I cast a bonus action spell on my turn, can I then cast “shield” as a reaction on my turn? Does PH 202 prohibit this? Yes.

— Jeremy Crawford (@JeremyECrawford) December 5, 2016

Yes to the first or second question? his questions are contridictory need to know which q, the yes is to The second

— Jeremy Crawford (@JeremyECrawford) June 29, 2017

@JeremyECrawford @mikemearls @ChrisPerkinsDnD what would happen to an undead if a hero blocked it's connection to the negative plane? #dnd

— Jonah Hall (@TheAdjunctDM) January 22, 2017

Undeath doesn't rely on the Shadowfell for its existence. #DnD https://t.co/tHVk5CFNCf

— Jeremy Crawford (@JeremyECrawford) January 22, 2017

While negative energy is needed to create undead, most undead creatures don't have a lifeline to the plane once they're created. #WOTCstaff https://t.co/XaTkFHtezR

— Christopher Perkins (@ChrisPerkinsDnD) January 22, 2017

@TheAdjunctDM @DnDDomain @JeremyECrawford @mikemearls @ChrisPerkinsDnD I assumed that was basically what happened when you cast Cure on them

— Explorer Rowan (@ExplorerRowan) January 22, 2017

Casting cure wounds on an undead has no effect, as indicated in the spell's text. #DnD https://t.co/4fx0rXMoBA

— Jeremy Crawford (@JeremyECrawford) January 22, 2017

@ogro_himself any design reasons for cure not causing damage to undead as it did in 3rd edition? The 3rd edition PH made cure wounds (aka cure light wounds) deal damage to undead. No other PH for the game does so.

— Jeremy Crawford (@JeremyECrawford) January 22, 2017

@JeremyECrawford When something lets you cast something at will (e.g. Eld Invocations), do you cast it as an action or is it free? #DnD

— Atezca (@Atezca25) May 17, 2017

Being able to cast a spell at will means it doesn't cost a spell slot. That ability has no effect on the spell's casting time. #DnD https://t.co/ZTDCnHB9xu

— Jeremy Crawford (@JeremyECrawford) May 17, 2017

@Atezca25 You're welcome!

— Jeremy Crawford (@JeremyECrawford) May 17, 2017