
Dungeons & Dragons, Dragons & Dungeons. It was something of an inevitability for Gumball to cover in its ongoing mission to get an angle out of every major pop culture phenomena of our current era; if anything, it's shocking that it took until close to the end of the series to make an episode centered around it. It's the sort of idea that allows you to theoretically do what the series does best: explore the many complications of its core cast by putting them together on the same road and watching what happens. "The Master," in that regard, is generally successful.
As a disclaimer, I should say that yes, I have played Dungeons & Dragons. I had a triumphant run as Sheridan the Aasimar that lasted all of two games before being pummeled to death by lowly goblins, but realistically, that's all the experience you need to understand all of "The Master's" jokes. That's not a diss, in any way: that's really all you need. "The Master" isn't looking to do some elaborate survey of everything D&D; it's all about the experience, the perpetual bickering and dicking around and those incredibly-inconvenient 2 rolls, which I swear happen more often than 1's. The entirety of their journey reminds me of me and my five other roommates managing to wring out an entire hour of D&D getting into bar fights—good times.