Most confusing power in JoJo

[tropicsbear]

(Before anything else; potential ⚠️ spoilers ⚠️ for all parts, both anime and manga, might be in the comments.)

The other day, I attempted to explain some Stand powers to a friend who has never watched JJBA before.

I think I was able to successfully explain King Crimson's abilities (or at least how I interpreted them) and it got me thinking; what is the most confusing power that you've come across in the series?