Minor Illusion Guide for D&D 5e

Let's discuss the Minor Illusion cantrip. How do you use it in combat? What levels is it good at? Let's do some scenarios on a battlemap to illustrate.
For a transcript of this video, follow this link (Thanks to Adurnis): docs.google.co...
I would like to credit Helzod's excellent post on illusion for some ideas I used in this video. His post covers several illusion spells, including Minor Illusion. Here's a link: www.enworld.org...