@ChrisPerkinsDnD How importantly are magical items to PCs early on in 5e. Does the system expect them to have items by level 4?

— James (@mjames1970) November 14, 2015

The system doesn't expect characters to have magic items. If they have them, great. If not, great. https://t.co/Q2Tix8YrqG

— Christopher Perkins (@ChrisPerkinsDnD) November 14, 2015

@JeremyECrawford Can spells such as Dimension Door be cast using a higher spell slot than their original spell level?

— Spencer (@206Siro) November 12, 2015

Any spell can be cast with a spell slot of its level or higher. See "Spell Slots" on p. 201 of the PH. #DnD https://t.co/1MzNbZeaCs

— Jeremy Crawford (@JeremyECrawford) November 12, 2015

@DnDPaladinquestion : when something set base AC, like mage armor… does it affect the modifiers too or can we still add modifiers ? why ?
effect should specify if your AC becomes a set number, a set number + modifiers, or a modifier added to your AC

— Mike Mearls (@mikemearls) December 1, 2015

@DnDPaladin think of mage armor as creating a suit of light armor with a base AC of 13, + mods

— Mike Mearls (@mikemearls) December 1, 2015

@mikemearls also, why create monsters that can hit with like +15 if nobody can have more then 20 AC ? seriously, AC is weird in this edition

— Luc Charette (@DnDPaladin) December 1, 2015

@mikemearls ok… its not making any sense to me… then why say unarmored defense cant stack if the formula was already not stacking ?

— Luc Charette (@DnDPaladin) December 1, 2015

@DnDPaladin for instance, Mage Armor specifies 13 + your Dexterity modifier. That's your base. Modifiers would then go on top.

— Mike Mearls (@mikemearls) December 1, 2015

@Boxvoko @JeremyECrawford How come Witch Bolt’s sustained damage doesn’t increase with higher spell slots? It feels a bit weak to me?
I believe because it stacks up too quickly – usually, damage buffs are one or two dice total

— Mike Mearls (@mikemearls) November 20, 2015