Standing on my MC soap-box, I feel like a HUGE part of it is the Powered by the Apocalypse game system.  The MC advice /alone/ in Dungeon World changed how I run games forever.  Like legitimately, it was freaking eye opening and all of my games play differently now based on those.<br/>I'm a huge proponent of Dungeon World specifically because of that freedom and fluidity!  The game runs /FAST/ and is designed to be played in that way.  You may notice, for example, that I've only rolled 1 die so far and that was damage.  At the table, I don't even have dice in front of me when I MC.<br/>I'm sure I've got a little bit of GM expertise, but I'm hardly an expert! Just kind of writing fun story and Dungeon World does an /amazing/ job of giving me the tools I need.  Just wait until you see some of the moves like<strong>Discern Reality</strong>and<strong>Spout Lore</strong>.  Amazing shit.