Hello! Before you try anything, hit the green flag. This is a sort of test for a move I've been imagining. It doesn't do that good of a job showing the "can't break without an attack from the user" thing, but it does do a good job at showing what it looks like and how it works. Hit space to use the universal lock. You can drag the circle around or snap it to your position simply by clicking/tapping the screen and/or dragging your mouse/finger around the screen.
The universal prison is something I've been imagining for a while. It's a move that locks the matter of the target in place, as well as the space which they inhabit. The move is so ungodly overpowered, as it actually prevents teleportation, as well as preventing you from moving at an infinite speed. The thing that holds this move back is how the lock instantly breaks as soon as the user lands a single attack on the target. The lock cannot be broken by any other being, only the user can break it.