Wa alaikum as salaam
Black magic and all forms of magic are shirk. Magic involves worshipping the shaiteen and jinns by doing things that please them and disobeying Allah.
(Interpretation of the meaning). Surah Al Baqarah ayah 102: Sulaymaan did not disbelieve, but the Shayaateen (devils) disbelieved, teaching men magic but neither of these two (angels) ...
Assalamualaikum and Praise be to Allah (swt),
Black magic IS in fact something that puts a person out of Islam and IS something that makes someone a disbeliever. One who does black magic is not a believer to Allah (swt) anymore. If one who does black magic, then they should ask forgiveness from Allah (swt) and they will be forgiven
Magic does not mean that there is any power besides Allah. In fact, Allah clearly says about magic:
But they do not harm anyone through it (i.e. magic) except by permission of Allah. And the people learn what harms them and does not benefit them. (2:102)
And this is the same as goes to every other means of harm like swords or guns or other weapons. Nothing ...