Dark / Fire
The Pokemon awakens quickly from sleep.
It powers up Fire-type moves if it's hit by one.
Some one-stage Pokemon are born with a birth defect that cause the Pokemon to hatch stuck between both stages of evolution. Miniature Houndoom, Houndour hatched with this defect, are known to be feisty Pokemon that are difficult to keep as pets, despite their popularity. Their fire contains a lesser concentration of toxins that only hurt for a month rather than a longer time.