Breaking soulsand has a chance to spawn souls

This mechanic might emphasize the existence of souls inside soulsand. The souls don't walk, they fly of course and can get through blocks and can attack you. They can possess most mobs including passive mobs (if they are near to souls) which turns them hostile and turns their eyes red. They can also possess the mob you're riding if you're riding a mob, which makes them go to a dangerous place if you're riding them but if you're not riding them, theyll just attack you. They also have a chance to possess you which disorients you (gives you the new disorientation effect) which inverts left and right and up an down. (It can also be called confusion instead of disorientation).

They may look like a 2d mob that always face you which looks like the souls in the soulsand texture and blue, or a 3d mob, but I don't know how it could look if it is 3d.

I hope you like my suggestion. If you think this mob will be too op if it has all these abilities then some of its abilities might have a low chance of happening.

I love Minceraft <3