Nothing like an explanation to all.
Adjusts the hosts health based on how many players are present.
amount (int): amount of health per player present
max (int, default 0): max amount of players health will scale for
after (int, default 1): base amount of players needed for health to scale
range (int, default 0): range at which players are needed to be in to enter health scale
healAfterMax (bool, default true): wether or not the entity will heal after max