Miracle

The ability to perform miracles is an ability shared by both angels and demons, due to their common origin. This ability enables them to alter reality on a moderate scale.

However, this ability is far from being limitless, though it appears that combined effort can be used to bypass certain limits of this ability. Also, the ability to affect supernatural aspects appears to be limited as well - for instance, only angels can generate holy water, and only demons can generate hellfire. Additionally, as size and form are but a matter of choice for angels and demons, their ability to assume at will any form they may desire does not count as performing a miracle.

Adam Young's ability to manipulate reality on a cosmic scale can be considered as an advanced variation of this ability, due to his heritage. After declaring Satan is not, and never was, his father, Adam's abilities were seemingly reduced to a level comparable to common demons/angels.