>>96351228Do you mean the pressure points stuff? Where she pokes someone with one finger and their entire arm goes numb, or blocks their bending?
It's a staple of martial artists heroes, like Batman, Daredevil and Iron Fist though not to the point of one touch disabling an enemy.
Appeared a couple of times on Jackie Chan Adventures, and I think at least one incarnation of Splinter in TMNT
On /tv/ Xena did a bunch of that, and Vulcans can do an instant knockout with a spot on the neck
On /a/ you have motherfucking Kenshiro, who can explode people by poking them gently. It's also the main style of the Hyugas in Naruto and it's used multiple times in Ranma 1/2.
Those are the main ones from the top of my head.