Poison Darters are Tree Dragons that can be trained but with much difficulty. In How to Break a Dragon's Heart, the Berserkers have a few trained Poison Darters that catch Hiccup and Fishlegs. They eventually join Furious and the Dragon Rebellion.
Traits and Abilities
Poison Darters are large-ish dragons with excellent eyesight and sense of smell. They are one of the species of dragons that can shoot projectiles out of their fire-holes (Razorwings and Leviathorgans are two other species). As their name implies, their projectiles—or darts—contain poison that can render a human unconscious. This poison is strong enough to kill smaller animals.
- How to Break a Dragon's Heart (Book 8), Cressida Cowell. 2009
- The Complete Book of Dragons: A Guide To Dragon Species, Cressida Cowell. 2014