In addition to that, I’ll add some encounters for the journey to Wave Echo Cave as well as suggestions for effectively running some of the areas of the dungeon. This post will focus exclusively on the first challenge, as I have already written separate articles about The Forge of Spells and Nezznar the Black Spider. Image Source: “Crystal Caves” by JoshEitenĪs a dungeon, Wave Echo Cave poses three challenges to GMs: The immense size of the dungeon’s map, the underwhelming nature of the Forge of Spells, and the lack of challenge that Nezznar the Black Spider presents to a 4th level party.