Ancient Deep Dragon
Gargantuan Dragon · Neutral Evil · CR 18
- Dragon
- Gargantuan
- Tier 4
- Evil
Ranges across underground; Ancient Deep Dragon lists at CR 18 as a gargantuan dragon (neutral evil). Sourced from Fizban's Treasury of Dragons.
Stat Block
- Challenge Rating
- 18
- Type
- Dragon
- Size
- Gargantuan
- Alignment
- Neutral Evil
- Speed
- 40, burrow 40, fly 80, swim 40
- Habitats
- Underground
- Sources
- Fizban's Treasury of Dragons
Ecology
Ancient Deep Dragon is one of the elder species, claiming a wide territory and shaping the ecology around it for centuries. It is most often found in underground regions. It is gargantuan-sized, which shapes how it hunts, hides, or fights. As a legendary creature, it is rare in the world and likely the only specimen of its kind in the local region.
Behaviour
Ancient Deep Dragon is intelligent, vain, long-memoried; it remembers slights for centuries and rewards loyalty in kind. Its Neutral Evil alignment shapes how it engages with the world — predictable in tendency, even when unpredictable in detail. It is intelligent enough to plan, scheme, or remember.
Origin
Ancient Deep Dragon is expanded in Fizban's Treasury of Dragons. Dragons in D&D canon trace to Bahamut and Tiamat, with each lineage having its own founding myth. Within a campaign, its existence anchors a region with the kind of weight only an old, named species carries.
Related Monsters
Frequently Asked Questions about Ancient Deep Dragon
- What is the challenge rating of Ancient Deep Dragon?
- Ancient Deep Dragon has a challenge rating of 18. It matches the highest-tier encounter math.
- What type of creature is Ancient Deep Dragon?
- The bestiary type for Ancient Deep Dragon is dragon, gargantuan size, neutral evil alignment.
- Where does Ancient Deep Dragon live?
- The published habitats for Ancient Deep Dragon: Underground.