on join:
    set {god.%player%} to true
    
on rightclick with iron sword:
    if player's tool is enchanted of knockback 2:
        if name of player's tool is "pvp":
            set {god.%player%} to false
            change name of player's tool to "PVP"

on leftclick with iron sword:
    if player's tool is enchanted of knockback 2:
        if name of player's tool is "PVP":
            set {god.%player%} to true
            change name of player's tool to "pvp"

on damage:
    if {god.%player%} is true:
        cancel event