Brogan, Bryan, and Jess break down all the turn-based actions that occur in Magic, even the ones no one knows about! Did you know there are special ones just for the beginning of combat step and the precombat main phase?
Other related episodes and stuff mentioned in the show:
Steps of a Turn – JudgeCast #52 – http://judgecast.com/archives/425
Combat Phase (more in-depth) – JudgeCast #72 – http://judgecast.com/archives/573
Ultimate Showdown of Ultimate Destiny – https://www.newgrounds.com/portal/view/285267