Adjust HP attribute

[WeylonSantana]

Is your feature request related to a problem? Please describe.
I'm always frustrated when I want to create traps, holes, areas to restore hp, etc, but the only way to do this is through events, which would make performance worse.

Describe the solution you'd like
something like this, map attribute where they take or add x to the player's health every y seconds (or simply using the server tick for y seconds, as the drop item on the map works)

Additional context
Add any other context or screenshots about the feature request here.