/give @p minecraft:diamond_pickaxe{display:{Name:"{\"text\":\"Mega Pickaxe\",\"italic\":false}"},Unbreakable:1b,Damage:1,Enchantments:[{id:"minecraft:efficiency",lvl:1000}]} 1
/give @p minecraft:diamond_shovel{display:{Name:"{\"text\":\"Mega Shovel\",\"italic\":false}"},Unbreakable:1b,Damage:1,Enchantments:[{id:"minecraft:efficiency",lvl:1000}]} 1
/give @p minecraft:diamond_axe{display:{Name:"{\"text\":\"Mega Axe\",\"italic\":false}"},Unbreakable:1b,Damage:1,Enchantments:[{id:"minecraft:efficiency",lvl:1000}]} 1
/give @p minecraft:diamond_sword{display:{Name:"{\"text\":\"Mega Sword\",\"italic\":false}"},Unbreakable:1b,Damage:1,Enchantments:[{id:"minecraft:efficiency",lvl:1000}]} 1