Minecraft/Diamond Pick and Obsidian

Lava and Obsidian
In the deeper layers of the Overworld you may come across lava lakes. When lava touches water different things can happen: Lava source blocks cannot be created and must be found in the caves and lava spread from them. Obsidian Obsidian is a very hard block and can only be successful be mined with a Diamond Pickaxe. Obsidian can use to make Enchantment Tables, Ender Chests and building a Nether Portal.
 * If lava flows on top of running of stationary water, the lava will solidify to Stone.
 * If lava flows horizontally against water, the lava will solidify to Cobblestone.
 * If water flows horizontally against lava, nothing happens.
 * If water flows vertically into lava, cobblestones forms or nothing happens.
 * If water flows into a lava source block, the lava will solidify into Obsidian.
 * If vertically falling water touches the lava source block on any side, the lava will solidify into Obsidian.

(Optional) Ranged Weaponry
You can make a Bow using 3 Sticks and 3 pieces of String. String is a drop form Spiders and can be harvest from Cobwebs. Use the materials as follows in the crafting grid: You can equip your Bow as a weapon. But it needs Arrows as ammo. To make an Arrow you need 1 Feather, 1 piece of Flint and 1 Stick, which gives you 4 Arrows. Feathers are drops of Chickens and Flint can be dug out of Gravel. Place the Flint in the top row of a Crafting Table grid. Place the Stick under the Flint. And place the Feather under the Stick. First to draw back the Bow if you have at least 1 Arrow. Hold the longer to shoot farther and cause more damage. At maximum charge your bow will shake and cause up to 9 damage, fire up a distance of 64 blocks (64 m) and travel at a speed of 53 m/s. Release the to fire. You can't run on foot with a charged Bow.