/give @p iron_sword 1 0 {
    display: {
        Name: "Infinity Blade",
        Lore: [
            "It has unspeakable power."
        ]
    },
    AttributeModifiers: [
        {
            AttributeName: "generic.attackDamage",
            Name: "generic.attackDamage",
            Amount: 15,
            Operation: 0,
            UUIDMost: 80922,
            UUIDLeast: 89345
        }
    ],
    ench: [
        {
            id: 19,
            lvl: 5
        },
        {
            id: 34,
            lvl: 3
        },
        {
            id: 51,
            lvl: 1
        }
    ]
}