Changelog:

• Obsidian and crying obsidian tools have been added, and various stone tools will be added in the future.
• Two enchantments, "Speed" and "Harden", have been added, in which the effect of "Speed" is to gain a [level] for 6 seconds of Speed Effect when attacked by the enemy, and for the next one, is to decrease damage from the others, and increase the damage to the others.
• Fixed an issue where armor durability was too low in mods.