Not all dragons are intelligent, powerful, elemental creatures. Some were hit especially hard by the shattering of their sorcery at the end of the 1st Age, becoming little more than animals. Dangerous animals to be sure, but still beasts. Squat and bulky, with thick necks and short muzzles, they move in small flocks (called "raids") and eat whatever they can. They are most associated with the jungles north of the Stone Throne, but they are found elsewhere (such as in the southern Lost Cost and the Island of Beasts). They are the drakes (sometimes called proto-drakes).

This is the first appendix for creating custom monsters. It covers commonly found traits.

Creature Creation, Part 0: Introduction

Creature Creation, Part 1: CR

Creature Creation, Part 2: Modifications

Creature Creation, Part 3: From Scratch

Monster Traits

This section reviews the various traits and features found in the DMG, the MM, and VGtM. They are categorized into two major groups--those that affect CR calculations directly and those that do not. Spellcasting, both innate and from spell slots, is reviewed separately as it is complicated.

This is part 2 of a series of articles about creating custom monsters for 5e. This one covers adapting an existing monster stat block.

Creature Creation, Part 0: Introduction

Creature Creation, Part 1: CR

This is part 3 of a series on creating custom monsters. This one covers creating monsters from scratch.

Creature Creation, Part 2: Modifications

Creature Creation, Appendix A: Traits

Creating a monster from scratch

There are two approaches here--numbers first and fiction first. I strongly recommend the fiction-first approach.

This is part 0 of a guide to monster creation. This one covers the philosophy--what makes a good monster? What is the role of a monster in D&D?

For Part 1, see Creature Creation, Part 1: CR.