Defeat Fury Klaus by dropping blueprints
"Jingle Bell, Jingle bell, out of your heart!"
Check the line: "Don't go, give me a break!"

Recipe: 1 Reborn Amulet, 1 Marble armor, 60 gold nuggets, 10 thulium ore, 10 ruby
Amulet item, when worn, slowly regenerates health at 5 every 10 seconds.
Active: Within 5 yards of a boss creature, recharge for 3 seconds, dealing a booster attack that deals 60 extra physical damage (+10% of your health) and gives you a permanent maximum health of 10.
Each unit has 120 seconds of cooldown and can stack up to 400 extra health, which can also trigger recharge attacks when stacked up, but does not increase the number of layers.
Passive: Goliath gets 10% larger for every 100 extra health, up to 40% larger, increases movement speed, and returns to normal health and size when equipment is removed.
In the inventory and on the ground, you can right-click, will produce a special sound effect, no other effects.
Defeat Fury Klaus by dropping blueprints 100%.
Infinite durability, the number of layers stacked below the item is displayed.

Made using an alchemy engine
"Use your right and left hands to tear the enemy apart!"
Check the line: "Quick hands can hit a double."

Recipe: 1 gold axe, 1 gold pick, 10 gold nuggets, 4 marble
Melee weapon, 51 damage, can be used as an axe.
Active: [Steel Chop] Right cut towards the specified position, cost 5 durability, deal the same range of damage as the weapon value, cool down for 2 seconds.
Durability 800, can be filled with gold nugget 20% durability.

Defeat the Antlion by dropping blueprints
"Giant hydra from a sea of lava fire."
Check the line: "Strike like a giant beast."

Recipe: 1 Thiamat, 1 thulium rod, 2 scales, 5 rubies, 4 sand stones
Melee weapon, Attack power 24, attack range 2.0, attack action using fence fencing,
Passive: [Cleave] can convert the health cap into attack power, normal attacks carry an additional physical damage of 10% of the player's maximum health, and the higher the player's blood cap, the higher the damage.
Active: [Steel Chop] Right cut towards the specified position, deal the same aoe damage as the weapon value, cool down for 0.5 seconds.
When attacking, there is a chance to launch a triple jab, dealing 3 damage.
Defeat Antlion by dropping blueprints 100%.
Infinite durability.