Solved Can I replace a zombie hearts with a variable

[Mich]

I am trying to do a zombie minigame and I replace players hearts with a variable, I want to do the same with the zombies.

Example

on damage of a player:
    if {minigame.%attacker%} is true:
        cancel event
        set {p_health.%attacker%} to p_health.%attacker%} - 10
        if p_health.%attacker%} is less than or equal to 0
            kill attacker

I try to set a variable to a zombie but I don't know how to