All Things /give

/give is the easiest command ever besides /tp
Its usage is in a format such as:

/give   [Amount] [Data] [DataTag]

I would do:

/give Proxxa_ diamond 64

to give myself a stack of diamonds.

The Data is just how much damage has been done to the item. This is mainly for a block / item with durability or Multiple Forms (i.e. stone).

The DataTag is much different. You can add certain tags to the items to modify it such as enchantments, names, lore, etc. You may also give an Item a tag that does not regularly exist so it can set itself apart from other Items with the same name, enchantments, lore, etc. but not the same fake tags.