en 1.8.7 /give Tools & Weapons

/give @p diamond_sword 1 0 {
    display: {
        Name: "Are You Nutz???????!?!?!??!"
    },
    AttributeModifiers: [
        {
            AttributeName: "generic.attackDamage",
            Name: "generic.attackDamage",
            Amount: 9999999999,
            Operation: 0,
            UUIDMost: 42329,
            UUIDLeast: 364867
        }
    ]
}