Use Echo Shard, Amethyst Shard, Nether Star
and 4 Blaze Rods to craft The Nether Blade.
Combine said Blade with your Netherite Sword using
Netherite Smithing Template to obtain The Nether Sword.
Nether Sword deals 12 damage, has 3090 durability
and strikes with lightning upon right clicking (vanity lightning strike)
