User blog comment:DarkClaw3/PE Proposal: Joker (JLA: The Nail)/@comment-1705775-20191223124545

this is what happens when Joker completely removes any restraints he may have and just says "screw it" - Joker prime tends to have moments where he holds back or restrains from killing Batman because he finds it funny (plus Joker prime usually doesn't actually want to kill Batman outright, since he has a weird parasitic relationship with Batman) but this one is arguably more dangerous and malevolent.

considering Joker prime is pure evil despite the aforementioned restraints this version is obviously well within PE territory.