{
    "isTagFor":[ //use to have settings copied to all below members. the filename is ignored and is not automatically added.
        "minecraft:plains",
        "minecraft:meadow"
    ],
    "bonus":{
        "BIOME":{
            "mining": 1.1, //this is a 10% increase in xp gain
            "flying": 0.75 //this is a 25% reduction in xp gain
        }
    },
    //If a player meets this requirement, the "positive_effect" is applied, otherwise the "negative_effect" is applied.
    //Note that if you do not define a positive or negative effect, that behavior is skipped.  This means that you
    //can have a positive effect for meeting the requirement without a negative effect for not, or vice versa
    "travel_req":{ //remove if both positive and negative effects are undefined
        "agility": 5
    },
    "positive_effect":{ //remove if unused
        "minecraft:regeneration": 1 //the level of the effect - 1
    },
    "negative_effect":{ //remove if unused
        "minecraft:poision": 2
    },
    //What blocks should not be permitted to be vein-mined
    "vein_blacklist":[ //if not adding, you can leave it, but it's cleaner to remove it
        "minecraft:bedrock",
        "minecraft:ancient_debris"
    ],
    //Which mobs, and by how much, should be modified in this biome. 
    //Note: this applies on mob spawns.  Mobs will not get weaker/stronger by changing the biome they are in.
    "mob_multiplier":{
        "minecraft:zombie": {
          "minecraft:generic.max_health": 0.5, //half health
          "minecraft:generic.movement_speed": 2.0, //double speed
          "minecraft:generic.attack_damage": 1.1 // 10% increase in damage
        },
        "minecraft:skeleton": {
            "minecraft:generic.attack_damage": 1.15  //not all attributes need to have values, only what you want to modify.
        }
    }
}