@JeremyECrawford @mikemearlscan you combine spell sniper, war caster, and polearm master with booming blade for attacks of opportunity? By the RAW, my brain wants to say that it works, but I was wondering what the official ruling is

— Nathaemius Varrowe (@dmvarrowe69) January 29, 2016

@dmvarrowe69 @JeremyECrawford spell sniper wouldn’t apply to booming blade. the spell is not an attack – it’s a rider on a melee attack.

— Mike Mearls (@mikemearls) January 29, 2016

@dmvarrowe69 @JeremyECrawford war caster does work, as I read it. Jeremy will know for sure.

— Mike Mearls (@mikemearls) January 29, 2016

@dmvarrowe69 @JeremyECrawford polearm master would not work at 10 feet, since spell sniper does not extend the spell’s range.

— Mike Mearls (@mikemearls) January 29, 2016

@dmvarrowe69 @JeremyECrawfordThe text says “When you cast a spell that requires you to make an attack roll, the spell’s range is doubled.” actually, I take those back – overlooked the "must" in booming blade, so that chain should work.

— Mike Mearls (@mikemearls) January 29, 2016

@ZarconistPreistWhats a good trade-off for letting a Sorcerer add “Arcane Eye” to his spells known list? it's a pretty useful spell, just keep in mind with sorcerer casting party will have it quite often

— Mike Mearls (@mikemearls) January 27, 2016

How strong is too strong for a big bad the enemies are meant to see but not fight at level 3?

Don’t worry about it. Make the villain as tough as you want. Just don’t tell the players how tough the villain is. https://t.co/Rl5fRNylQl

— Christopher Perkins (@ChrisPerkinsDnD) February 2, 2016

@DerynDraconis @JeremyECrawfordDamage Immunity on lycanthrope: can 2 werewolves that are fighting each other do damage, among them,with claws? only if their attacks specify a damage type or effect that overcomes the resistance or immunity

— Mike Mearls (@mikemearls) January 29, 2016

@SlyFlourishIf a target outside of a cloud of darkness attacks a creature inside a cloud, does adv and disadv cancel out? #dnd Yes.

— Jeremy Crawford (@JeremyECrawford) February 4, 2016

As a general piece of DM advice – I don't sweat party strengths or weaknesses. Players like feeling competent.

— Mike Mearls (@mikemearls) January 29, 2016

The real challenge in my campaigns comes in long-term goals players have to pursue. The "why" behind an adventure, rather than the "what".

— Mike Mearls (@mikemearls) January 29, 2016

Favorite example – players in my old Greyhawk campaign really, really hated a dwarf assassin who betrayed them. They wanted that guy DEAD.

— Mike Mearls (@mikemearls) January 29, 2016

All I had to say was, "You heard Obmi has been spotted in town" and they were off on their next adventure.

— Mike Mearls (@mikemearls) January 29, 2016

I never tried to save him. He was a devious bastard with like 4 escape plans, but I never metagamed or fudged to let him survive.

— Mike Mearls (@mikemearls) January 29, 2016

Which meant when he got away, sometimes just by crazy dice luck, it made them hate him even more. As opposed to hating me for blocking them.

— Mike Mearls (@mikemearls) January 29, 2016

That doesn't mean fudging is bad, per se. It's just another tool in a DM's arsenal, one that you need to use carefully, just like any tool.

— Mike Mearls (@mikemearls) January 29, 2016

In general, I fudge stuff only to keep the game moving, and often "fudge" in the form of using a number I pick in place of a roll.

— Mike Mearls (@mikemearls) January 29, 2016

Like, the PCs try talking to ogre mage. I could have them roll Cha to see if he attacks or talks, but I'd rather just dive into RP. No roll.

— Mike Mearls (@mikemearls) January 29, 2016

@SignGuyOttawaso it is more about rolling or not rolling to move the story the way best, not actually fudging a role. yeah, learning when to roll vs. when to make a call

— Mike Mearls (@mikemearls) January 29, 2016

@NicSweeneyReading your feed, feels like you’re addressing 3 needs from self determination theory (competence, relatedness, autonomy) yes! the advantage of doing game design for a living – I get to study this stuff during work hours! Really applies to DMing

— Mike Mearls (@mikemearls) January 29, 2016

@Generalboxwould a paladins smite be affected by antimagic field or counterspell magic? nope – those things affect spells only IIRC

— Mike Mearls (@mikemearls) February 16, 2016

@ChrisPerkinsDnD where can I find up to date info on the Forgotten Realms? I have the Sword Coast Adventurers Guide and 4e campaign setting.

— Chris Maclean (@ChrisFmaclean) January 27, 2016

The SCAG is the most up-to-date FR roleplaying game product to date. https://t.co/jZrJd1u2UK

— Christopher Perkins (@ChrisPerkinsDnD) January 28, 2016