MTG’s Pyschographic Profiling by Mark Rosewater https://magic.wizards.com/en/articles/archive/making-magic/timmy-johnny-and-spike-2013-12-03

Keith Burgun on the use of Randomness in game design (against output randomness) http://keithburgun.net/randomness-and-game-design/

An old but useful infinity tabletop guide that I wrote https://docs.google.com/document/d/1yWmeQa7xkUadIaY9a3Iq49f-yCQNo4qRTOJumI2PtfI/edit?usp=sharing