Angel was a little surprised to see that such elemental creatures would emerge from the Magma Lake?
It's known that while elemental creatures aren't exactly rare, they're not abundant either. Typically, the right conditions are needed for them to be born.
If there were a place that continuously produced elemental creatures, even if only embryos, Wizards would likely flock there. After all, nurturing embryos is not easy, but there are many ways to manipulate the source to produce the young of elemental creatures from the Magma Lake.
Angel released the grip of the Hand of Magic.
Perhaps sensing the elemental energy on Angel, the Flame Butterfly did not leave immediately.
