They incubate in lava pools before hatching. A hug from a Magpi is known to be extremely comforting, as the gentle warmth that radiates from Magpi's rocky shell perfectly mimics the feeling of embracing a loved one.
As its energy, it uses the feelings of compassion and pleasure exuded by people and Pokémon. If a Magpi is spouting yellow flames from its mouth, it is in good health.