Evil Scientist

en any /summon Villager Shops

Enjoy

The command

Note: Minify the command to avoid issues :)

/summon Villager ~1 ~ ~ {
    Profession: 1,
    CustomName: "Evil Scientist",
    CustomNameVisible: 1,
    Career: 1,
    CareerLevel: 42,
    PersistenceRequired: 1,
    NoAI: 1,
    Invulnerable: 1,
    Attributes: [
        {
            Name: "generic.knockbackResistance",
            Base: "1f"
        },
        {
            Name: "generic.maxHealth",
            Base: 99999
        }
    ],
    Offers: {
        Recipes: [
            {
                buy: {
                    id: "red_flower",
                    Count: 6
                },
                buyB: {
                    id: "sapling",
                    Count: 6,
                    Damage: 4
                },
                maxUses: 9999999,
                sell: {
                    id: "end_portal",
                    Count: 16
                },
                rewardExp: false
            },
            {
                buy: {
                    id: "nether_wart",
                    Count: 3
                },
                buyB: {
                    id: "beacon",
                    Count: 1
                },
                maxUses: 9999999,
                sell: {
                    id: "barrier",
                    Count: 64
                },
                rewardExp: false
            }
        ]
    }
}

Created: Mon, 26 Jun 2017 08:07:08, Updated: Mon, 26 Jun 2017 08:07:08, Views: 9