Deep Dive: Koalinth offers an in-depth look at the koalinth, a little-known aquatic goblinoid species whose existence dates back to the early ages of D&D's history. This 26-page document includes everything a Dungeon Master might need to feature koalinth in their next adventure:
Revised lore, which is in line with the new goblinoid origins described in Tasha's Cauldron of Everything
Racial traits for players who wish to play as a koalinth
Tactical tips to help Dungeon Masters use these new creatures in combat without any problem
Suggestions as to how to replace them where they appear in the Ghosts of Saltmarsh book
Six original koalinth organizations and societies, as well as four adventure hooks for each of them
19 brand-new stat blocks that can create a variety of combat encounters. Includes heirs of war koalinth, who descend from the soldiers of Maglubiyet's legions, primeval koalinth, who lived their whole life in the Feywild and kept a link to its magic, and multiple beasts that are bred and raised by the goblinoids
A new water vehicle, the war barge, that koalinth use in times of war
- from the publisher's blurb