I'm pulling on my driveway. We all know what that means. It's time for another drive to work.

Okay. So today is another in my series, 20 Lessons, 20 podcasts. So at GDC this year, or last,

not this year still, I gave a speech talking about the 20 lessons I learned in my 20 years working on magic,

and I've been going through each lesson as a separate podcast.

So today is lesson number 10.

Leave room for players to explore.

Okay, so for each one of these, I started by giving a magic explanation.

So the story I will tell is about two cards in magic.

So one card was called Summoners Pact.

So Summoner's Pact was a green spell that allowed you to go get a green creature out of your deck

and put it onto the battlefield.

It was called Summoners Pact and it let you go summon a creature.

The thing about it that made it special though was that when you cast it, you, it didn't cost anything to cast.

And on the next turn, so, flashback a little bit, um, in unhinged, I'd made a card called, uh,

what was it called?

Turbocharged, um, what was the name of the tower?

Uh, it was, uh, the idea was I made a little creature that had super haste.

It was called, what was it got, turbocharged slug?

I'm blanking in the name.

The idea was, the unsets, I do fun things, and I play around with existing keywords.

So I made super haste.

And what super haste was, it was a creature that you played,

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