Weredragon (5e Creature)
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Medium humanoid (human, shapechanger), any alignment
Saving Throws Con +7
Shapechanger. The weredragon can use its action to polymorph into a dragon-humanoid hybrid, into a dragon wyrmling, or back into its true humanoid form. Its ability scores, personality, and other game statistics, besides its size, speed, and AC, remain the same in each form. Any equipment it is wearing or carrying isn't transformed. The weredragon reverts to its humanoid form if it dies. The weredragon can polymorph into exactly one species of dragon wyrmling as its dragon form.
Elemental Resistance (Hybrid Form Only). While in Hybrid form, the weredragon is immune to the same damage types as its dragon form.
Multiattack (Humanoid or Hybrid Form Only). The weredragon makes two attacks: one with its bite and one with its claws, tail, or battleaxe.
Claws (Hybrid or Dragon Form Only). Melee Weapon Attack: +3 to hit, reach 5 ft., one creature. Hit: 8 (2d4 + 3) slashing damage.
Bite (Hybrid or Dragon Form Only). Melee Weapon Attack: +3 to hit, reach 5 ft., one target. Hit: 7 (1d8 + 3) piercing damage. If the target is a humanoid, it must succeed on a DC 12 Constitution saving throw or be cursed with weredragon lycanthropy.
Tail (Hybrid or Dragon Form Only). Melee Weapon Attack: +3 to hit, reach 5 ft., one target. Hit: 6 (1d6 + 3) bludgeoning damage. If the target is the same size as the weredragon or smaller, the target must succeed on a DC 11 Strength saving throw or it falls prone.
Battleaxe (Humanoid or Hybrid Form Only). Melee Weapon Attack: +3 to hit, reach 5 ft., one target. Hit: 7 (1d8 + 3) slashing damage, or 8 (1d10 + 3) slashing damage if wielded in two hands.
Breath Attack (Hybrid and Dragon Form Only, Recharge 5-6). The weredragon exhales powerful elemental energy in a cone or line depending on the type of dragon it is. Each creature within range of this attack must make a DC 11 Dexterity saving throw, taking a certain amount of damage on a failed save, and half as much damage on a successful save. See the creature page of the dragon wyrmling that the weredragon can polymorph into. The recharge time applies to both your Hybrid and Dragon form.
Weredragons are some of the most powerful werecreatures found in the Material Plane. Regardless of their alignment, they are extremely proud of themselves and think of themselves as superior to all other creatures. They enjoy the challenge of being hunted down by those that hunt werecreatures and sometimes go after these hunters themselves. In humanoid form, a weredragon has a noticeable patch of scales on the sides of its face and has particularly sharp teeth. Weredragons are heavily opposed with sharing their curse and are very selective in their decisions to spread their special strand of lycanthropy.
After they are first infected with the lycanthropy disease, weredragons act much like the dragon of their scale's color, taking on the same personality traits as the dragon that flows in their blood. They also take a liking to caves and hoarding treasure. While in their hybrid forms, they are often confused with dragonborns due to their similar physical appearance. Strangely enough, those with the dragon blood in their genes are immune to this strand of lycanthropy altogether.
Characters as Weredragons
The color of dragon and the alignment that the character takes on while in dragon and hybrid form is the same as the weredragon that gave the character weredragon lycanthropy. The character also gains a Constitution of 19 if his or her score isn't already higher, and a +1 bonus to their AC while in dragon or hybrid form (from natural armor). Attack and damage rolls for the natural weapons are based on Strength. The save DC for the breath attack is equal to 8 + the character's proficiency bonus + their Constitution modifier. The save DC for the tail attack is equal to 10 + the character's Strength modifier. After using their breath attack while in their hybrid or dragon form, they cannot use it again until they finish a short or long rest. Characters of the dragonborn race or any other race that is related to dragons cannot receive weredragon lycanthropy.