There’s no clean way to template [unexilable], and it doesn’t happen enough that we need a whole keyword.Why can’t you just write “can’t be exiled”

We can, but I believe there are effects you would expect it to stop that it doesn’t.

Hey Mark! I have asked this once or twice before (over a longish time), but I don't think it's been answered before, so I'll try asking it differently. I know accessibility is a fact when designing main set mechanics, but how does that apply to Un sets? I have tourrettes syndrome, and nothing feels worse than playing against the card "stop that" or I remember there was a card that tapped a creature when you said a phrase, but at the prerelease for that unset one of my opponents was deaf. And past that, how does accessibility factor into card design?

I did answer your question in a rather long post. If you scroll back to the last time you asked it, you can see my response. I’m waiting at the airport for my flight, so I don’t have the ability to rewrite it. Sorry.

Howdy Mark! Could you tell the Force of Will play test name story?

At different times, “Gorilla, Gorilla, Gorilla, Gorilla, Stop That” and “Stop Spell”.

As the game ages and new sets come out, more and more mechanics are added to the game, causing the overall complexity of older formats to rise over time. Do you ever invision a time where to cut back on complexity creep, you need to start designing sets with exclusively returning mechanics?

Formats with large amount of sets in them are going to rise in complexity. Nothing can stop that. We’ll make sure to also have formats that are smaller and don’t require you knowing 20,000 plus cards. As I always say, we try not to hold the future of the game hostage to its past.

Why do you always play EDH with political groups? My commander games are quite a-political. Very rarely people will make deals about not being attacked but most players I know (my shop hosts about 75 semi-regulars) hold things close to the vest and only bring politics in when there's someone who's very obviously about to take over the game "we need to stop that or they'll win". EDH is great without the politics.

Any game where there are more than two people and each person free to choose which others players to help or hurt is political.

Dominaria has received apparently universal acclaim so far, a success that - if reflected in sales - I'd expect Wizards to try and emulate going forward. Yet when asked about popular elements such as the desirable reprints and interesting, complex designs at uncommon your response has amounted to "Don't get used to it". If Dominaria is successful, might Wizards be open to re-evaluating its approach to popular elements like this and potentially do more of it in future?

The goal of each set is to bend things towards what that set is about. If we don’t stop that to bend other sets in other directions, it would get super complicated.

If someone in R&D were to create a card that said, "If an effect were to cause something to be doubled, prevent the doubling from occurring", would you do anything to stop that card from seeing print?

Perhaps I already have. : )It’s a pretty situational effect though so it would have trouble not getting cut along the way.

Just wanted to say thanks for everything you do to make magic be so amazing! I have an Un-set question. If someone is flicking their cards, can I in response cast Stop that, have the gotcha trigger resolve , and cast it again?

The Gotcha doesn’t work until the card is in the graveyard so you’re giving your opponent a big warning to stop flicking. If they continue once the spell resolves and goes to the graveyard, then you can call “Gotcha!” on them.

im a fairly new player and i was searching on gatherer through the cards that cost phyrexian mana and i came across mental misstep, what was the thinking behind the card?

I tried to stop that card and failed. I think the thought behind it was development trying to make an exciting Phyrexian mana card.

What're your thoughts on audible card flicking?

See the Unhinged card Stop That! which I designed (see above).