Chimney Ass

Your target's rectum, every time you move creates medium size black smoke that smells horrendous and has a smell radius of 60 ft and stealth checks are treated as automatically failures.

The target also cannot see 10 ft in front of themselves causing perception checks to be at disadvantageous.

When trying to use a charisma check of any kind or saving throw add a +15 difficulty check to the target(for reference if you had to make a DC 10 saving through it would become a DC 25 check)

At the end of each of the creatures turn it takes 8d6 physic damage out of embarrassment