Satan Soul: Mirajane Seilah (ミラジェーン・セイラ Mirajēn Seira) is a Satan Soul Spell.
In this form, the user gains an appearance almost exactly like Seilah's, receiving two large gold-looking horns protruding from the sides of their head and pointing upwards. The user's hair becomes long and black, with a distinctive short, upward ponytail. They wear a white band on their head which separates their hair, framing their bangs from their hair below the band. On the forehead is a small circular symbol with a small dot on the inside and surrounded by several dots around the top, and they wear a tied, small white-colored strap around their neck.
The user's attire is a very revealing beige-colored leopard-printed kimono that bears the decorative marks on their shoulders. The kimono is wrapped around their torso with a thick, decorative yellow ribbon that ties behind their back, and they also wear thigh-high socks that reveal their heels and toes.
Macro (命令 Makuro): While employing this form the user can use Seilah's signature Curse: Macro. This allows them to fully control the body of victims and manipulate them through "orders", as shown when the user ordered a group of soldiers to fall asleep.  There seems to be a limit to the number of people who can simultaneously be affected by the Curse, as some ignored said order.
- ↑ 1.0 1.1 1.2 Fairy Tail Manga: Chapter 456, Page 9
- ↑ Fairy Tail Manga: Chapter 456, Page 10
- ↑ Fairy Tail Manga: Chapter 456, Page 11