How do Spirit Guardians impact available movement in D&D 5E?
Spirit guardians have a significant impact on movement in D&D 5E. With the player’s permission, this can be minimal and the spirit guardians will follow at about walking pace, to full-time fighting guardian which moves with one step per round. There are no shortage of options in between these two extremes. In addition, there is the ability to send an attached spirit guardian outside of combat for reconnaissance purposes or other actions that require their abilities. Decisions about where a spirit guardian goes should always be discussed with GM beforehand when possible!
The Guardian Force Guidebook provides information on what each type of guardian does as well as discussing how they’re handled in combat and out of it. This book also includes general rules for playing a spirit guardian and how they fit into an adventuring party.