I draw this with Procreate, how can I create a shape like this in Illustrator?
Looks like a raster effect. Illustrator is vector based so Photoshop would be a better choice for this.
Attention: There will be an awful lot of anchor points. The white thing in the center hides something, right?
So you could create a spiral and apply one of the charcoal brushes to it. Then draw a rectangle and apply the Roughen effect. Make that rectangle black and use it as an opacity mask on the round thing
Thank you so much!