This article is about the DM advice blog. For the rogue power, see sly flourish. Sly Flourish is a blog published by Mike Shea beginning in 2009. The blog presents advice for Dungeon Masters in Dungeons & Dragons, such as encounter design and product reviews. In 2010, Shea was interviewed by Wizards of the Coast about Sly Flourish. Later that same year, Shea published an e-book entitled Sly Flourish's Dungeon Master Tips.