Diamond sword and Pickaxe
WEAPONS AND TOOLS:
Tools:
Picks: Picks help you tunnel through stone, iron, coal, and other blocks found underground. The pick is far more efficient than other tools and breaking rock, and with some materials, you will need the strongest picks just to be able to break them.
Shovels: Shovels are useful for tunneling through sand and dirt, but are less effective against rock. Shovels however make quick work of dirt and sand, where picks take much longer.
Axes: Axes are only really useful on trees, but they chop through wood in a hurry. They are far slower against all other blocks.
Weapons: (Swords)
Are used to kill mobs faster, and may be created via Crafting. When press the action key (mine) to a mob no more than 3 blocks away, you deal damage according to what you are holding.