@JeremyECrawford Can a diviner declare portent after the die has been rolled? Or only before? Thanks!

— Eugene Marshall (@eugenemarshall) March 24, 2016

Using Portent: "You must choose to do so before the roll" (PH, 116). #DnD https://t.co/JjEbngBkI3

— Jeremy Crawford (@JeremyECrawford) April 1, 2016

@JeremyECrawford Sorry, follow up: and does diviner's portent replace roll only or roll plus modifiers? Thanks again.

— Eugene Marshall (@eugenemarshall) March 24, 2016

A Portent roll replaces a d20 roll, not modifiers. #DnD https://t.co/yQ2qOJ9nt1

— Jeremy Crawford (@JeremyECrawford) April 1, 2016

@RodneyWade2Cast polymorph on self to become T-Rex. Able to tell friend from foe? yes

— Mike Mearls (@mikemearls) March 21, 2016

@Younes_KE @JeremyECrawfordcasting wish through ring of three wishes still has drawbacks on the caster right? yes

— Mike Mearls (@mikemearls) March 23, 2016

@YMichaelZhang @JeremyECrawfordCan I move into an ally’s space, attack from there, then move out? i'd allow it – I don't recall a specific prohibition other than not allowing you to stop there

— Mike Mearls (@mikemearls) March 21, 2016

@KrisKoletar @ChrisPerkinsDnDDisguise/Alter Self, self only. Polymorph, beast only. No way to magically disguise 3rd party until True Poly? yes, by design – forces reliance on checks

— Mike Mearls (@mikemearls) March 21, 2016

@KrisKoletar @ChrisPerkinsDnDAh. Prevents wizards from being Swiss Army knives? yes! tried to cut back on that.

— Mike Mearls (@mikemearls) March 21, 2016

@kelben_guru @JeremyECrawford @ChrisPerkinsDnDif i charm an animal with animal friendship, he can fight by my side? Need some skill check? no – charm effect isn't that powerful

— Mike Mearls (@mikemearls) March 23, 2016

@kelben_guru @JeremyECrawford @ChrisPerkinsDnD yes, except in self-defense for both (enemy attacks charmed target)

— Mike Mearls (@mikemearls) March 23, 2016

@JeremyECrawford When trying to be undetected using stealth, does being invisible give any advantage at all?

— Robyn Kozierok (@robynkoz) March 27, 2016

Being invisible confers the benefits of the invisible condition (PH, 291). #DnD https://t.co/gDePvs1sd3

— Jeremy Crawford (@JeremyECrawford) April 1, 2016