Super Saiyan 7 is a very powerful form. It is also very, very hard to control. The user must have a lot of practice and transform into it a lot to start getting used to it. It is also one of the most terrifying looking of all the Dragon Ball X forms.
Hair: Glowing cyan with black and dark blue tint.
Aura: Black and red surges of ki.
Strength: 20,000 megatons (20 billion tons)
Speed: 20 billion miles per hour
Durability: 10 billion megatons
How To Obtain
The power of this form is like pure evil. So the way to achieve it is that you first must achieve Heartless Super Saiyan Level 5 when you were first in a Super Saiyan 6 to get extra power. The user must also have gone through vigorous training for at least 6 years in total. If all this has occured, the user will release a massive black and red explosion after a few seconds and complete the transformation.
Black Hole Attack
Giga Ki Blast
Super Strength Finish