A Big Jerk

en 1.8,1.10,1.9,1.10.2,1.11 /summon Villager Shops

He's a real JERK

The command

Note: Minify the command to avoid issues :)

/summon Villager ~1 ~ ~ {
    Profession: 3,
    CustomName: "Jerry The Jerk",
    CustomNameVisible: 1,
    Career: 2,
    CareerLevel: 42,
    PersistenceRequired: 1,
    Silent: 1,
    Invulnerable: 1,
    Attributes: [
        {
            Name: "generic.knockbackResistance",
            Base: "1f"
        },
        {
            Name: "generic.maxHealth",
            Base: 99999
        }
    ],
    ActiveEffects: [
        {
            Id: "17",
            Amplifier: 0,
            Duration: 2147483647
        }
    ],
    Offers: {
        Recipes: [
            {
                buy: {
                    id: "diamond",
                    Count: 10
                },
                buyB: {
                    id: "iron_ingot",
                    Count: 20
                },
                maxUses: 9999999,
                sell: {
                    id: "diamond",
                    Count: -500
                },
                rewardExp: false
            },
            {
                buy: {
                    id: "stone",
                    Count: 1
                },
                maxUses: 9999999,
                sell: {
                    id: "stone",
                    Count: 1
                },
                rewardExp: false
            }
        ]
    }
}

Created: Thu, 01 Sep 2016 20:26:59, Updated: Thu, 01 Sep 2016 20:26:59, Views: 3