Fire ball Justus is Aries & Black flames is Scorpio

1) Aries creates Fireball just since mars rule them; our dealing with passion, desire, and intuition can become explosive if their intent is blocked. Furthermore, the sun is exalted here, so they exhaust themselves with initiation and create new ways to see and feel about things, aka Fireball, which puts light into things.

2) Scorpio is Amaterasu since it’s the Uchiha clan’s secret ( 8 house) technique, and it’s ruled by mars & pluto, which can manifest as a technique for ending something since Scorpios don’t express & or release their thoughts and feelings. Also, the moon is falling, making it hard for them to react & respond & relate, which throws people off cause they react too profoundly; if they don’t have a release system, they can experience emotional chaos. For this reason, Amaterasu, Once completed, the flames will not stop burning until their target is wholly incinerated with (Deep passion or vengeance).