<p><a href="https://www.xplainthexmen.com/wp-content/uploads/2025/12/X509.png"><img loading="lazy" decoding="async" class="aligncenter size-large wp-image-23558" src="https://www.xplainthexmen.com/wp-content/uploads/2025/12/X509-1024x678.png" alt="" width="900" height="596" srcset="https://i0.wp.com/www.xplainthexmen.com/wp-content/uploads/2025/12/X509.png?resize=1024%2C678&#38;ssl=1 1024w, https://i0.wp.com/www.xplainthexmen.com/wp-content/uploads/2025/12/X509.png?resize=300%2C199&#38;ssl=1 300w, https://i0.wp.com/www.xplainthexmen.com/wp-content/uploads/2025/12/X509.png?resize=768%2C509&#38;ssl=1 768w, https://i0.wp.com/www.xplainthexmen.com/wp-content/uploads/2025/12/X509.png?resize=1536%2C1018&#38;ssl=1 1536w, https://i0.wp.com/www.xplainthexmen.com/wp-content/uploads/2025/12/X509.png?w=1944&#38;ssl=1 1944w, https://i0.wp.com/www.xplainthexmen.com/wp-content/uploads/2025/12/X509.png?w=1800&#38;ssl=1 1800w" sizes="auto, (max-width: 900px) 100vw, 900px" /></a></p> <p>In which Marrow just want to be left alone; Spider-Man remains hapless; S.H.I.E.L.D. is unhelpful; Colossus dies; Shadowcat leaves the X-Men; and we are all on board for Mutants to Watch Out For.</p> <p>X-PLAINED:</p> <ul> <li>How Magik caught the Legacy Virus</li> <li>Marrow (again)</li> <li><em>Spider-Man and Marrow</em> #1</li> <li><em>Uncanny X-Men</em> #390</li> <li><em>X-Men</em> #110</li> <li>A fancy club</li> <li>A terrible plan</li> <li>The Legacy Virus (more) (again)</li> <li>Some deeply contrived “science”</li> <li>A life-affirming display of social interaction</li> <li>The death of Colossus</li> <li>A very silly sound effect</li> <li>Acceptable handwriting</li> <li>Nostalgia</li> <li>A double send-off</li> <li>Closure</li> <li>Mortality in Otherworld</li> <li>Imaginary crossovers</li> </ul> <p>NEXT EPISODE: Winter Special!</p> <hr /> <p>Check out the visual companion to this episode <a href="https://www.xplainthexmen.com/2025/12/as-mentioned-in-episode-509/">on our blog</a>.</p> <p>Find us on <a href="https://podcasts.apple.com/us/podcast/jay-miles-x-plain-the-x-men/id862258051">Apple Podcasts</a> or <a href="https://open.spotify.com/show/3dB4KyeOeylfiIVImshFY2?si=ee5e912a53114820">Spotify</a>!</p> <p>Jay and Miles X-Plain the X-Men is 100% ad-free and listener supported. If you want to help support the podcast–and unlock more cool stuff–you can do that <a href="https://www.patreon.com/xplainthexmen">right here</a>!</p> <p>Buy rad swag at <a href="https://xplainthexmen.dashery.com/">our Dashery shop</a>!</p>