A Dungeon Master designs a homebrew D&D 5e subclass, with visions of a druid’s wild shape and a rogue assassin taking form above the table. Picture the way Iron Man turns a regular human into a walking arsenal, or how a Witcher -style upgrade can change the entire feel of a fighter. That’s what a subclass does in Dungeons & Dragons 5e : it reshapes how your main class plays, and it’s a big reason players gravitate toward a few favorites again and again. There are many subcla