Once upon a time, a [Titan]noob pvps CypriotMerks and he is at half a life left. Quickly he typed /heasdl but console said that the command is unknown and resulting the noob's instant death. Ok, my suggestion is if a player mispelled a command, it would auto-correct. If I typed /spwen, it should auto-correct it and when pressed enter, the correct command executes. Just a suggestion. Feel free to leave some feedbacks
For example you are pvping then suddenly you are half a life left, the best thing to do is to heal right. You have to type /heal but you spelled it wrong like /healk or what so ever. My suggestion is even if you mispelled a command, it will still execute.
Not possible to add you must type for the command for it to work I'm good with plugins and this is near impossible to add. Plus just spell it correctly you won't have this problem.
No support. If you are relying on /heal to pvp, and accidentally type it wrong, that's your fault. Please, no. This is a horrible idea. I'm sorry, but there's enough running, pearling blah blah in pvp. Just start typing your /heal earlier, and retype /spawn :3