Seth Rollins’ former finisher- Curb Stomp and the most recently banned move, one which almost seems inexplicable.
The Piledriver was the very first move ever explicitly banned by WWE, after a mistake by Owen Hart accidentally broke the neck of rising star “Stone Cold” Steve Austin
Popularized by “Sugar” Shane Helms (Helms would go on to slightly larger fame as superhero character The Hurricane in WWE), the Vertebreaker was as complex and dangerous move
Dick Murdoch is credited with innovating the Brainbuster and bringing it into popular use. Now, safer version of a Brainbuster can be seen in the Jackhammer, a move of Goldberg
Remember when Randy Orton used to kick people in the head and put them out for weeks with serious head injuries? The 'Punt' move is now banned
After Brock Lesnar nearly sent himself to the hospital attempting a Shooting Star Press at WrestleMania XIX, the move landed itself on the banned list
The Pedigree, clearly, is a legitimately dangerous move. The original version of Triple H’s Pedigree was quickly banned by WWE, especially after some wrestlers got hurt
Burning Hammer is so dangerous that it has only been performed a handful of times professionally, but never in WWE. The move was pioneered by Kenta Kobashi greatest Japanese wrestler in history