Board Thread:General Discussion/@comment-27174095-20171114023949/@comment-45015111-20200331154411

Why life energy woldn't affect life energy ?

"Indeed Jotaro, what you have called an "evil spirit" is but a powerful vision created by your own life energy! And since it stands next to you, it is called... a Stand!" Joseph Part 3

"However while all materials can conduct the Ripple more or less well, inorganic material such as metal cannot store the energy, which simply passes through." This Wiki

So a physical attack like Rebuff Overdrive doesn't cause the damage just the Ripple in the attack.