/health Command

I think a cool map-making or battle feature could be /health to change your health.

It would be like this:

/health [username/@] [add/deplete/set/max/low] [amount of hp]

If I wanted someone to have 30 hearts, here's what I would do:

/health random_username set 60

or I could set the max health to 5 hearts, like this:

/health random_username max 10

The "low" argument would set the LOWEST health before you cannot take any damage anymore.

If set to negative health, any healing factors or items would kill you instantly.

This would be so cool! Please add!