A beast, humanoid, giant, or monstrosity can become a half-dragon. It keeps its statistics, except as follows.
Challenge. To avoid recalculating the creature’s challenge rating, apply the template only to a creature that meets the optional prerequisite in the Breath Weapon table below. Otherwise, recalculate the rating after you apply the template.
Senses. The half-dragon gains blindsight with a radius of 10 feet and darkvision with a radius of 60 feet.
Resistances. The half-dragon gains resistance to a type of damage based on its color.

Languages. The half-dragon speaks Draconic in addition to any other languages it knows.
New Action: Breath Weapon. The half-dragon has the breath weapon of its dragon half. The half-dragon’s size determines how this action functions.