A Canadian Colddrake (sometimes Cold-drake or cold drake) is a type of dragon native to North America. It is unique among dragons as it lacks the ability to breath fire. Instead, it relies on its fangs and claws for defense. Like it's name suggests, the Colddrake favors the cold weather of the Canadian taiga. However, it has been spotted as far south as North Dakota and Minnesota.
Due to its properties, Colddrake venom is thought to have devastating applications in potioneering. Mycroft Holmes posited several hypothetical uses in an article published in the March 1888 issue of the Practical Potioneer. Because the venom of the Colddrake is extremely hazardous to handle and can only be stored in vessels made of adamantine under very specific conditions, very few wizards have ever attempted to actually test its uses.
- Victoire Weasley and the Thief of Souls (mentioned)