You can make your weapons much more powerful with the refinement system.

Each refining stone increases the damage attribute of your weapon.
The higher the refinement level, the stronger the item will be.
When the item fails it moves back " -1 " in stats.
When refining is well succeeded, it advances" +1 "in the stats.

Check the difference between the stones in the table below.
For more information about the monsters that drops artifacts, take a look at Monster Loots page.

Refinement	How to get it	Ingredients to forge
Basic Refinement Item Level +1 / +20 Probability of Success 100%	Buy from NPC Refinement Seller (All Cities)	(Not Forgeable)
Ultra Refinement Item Level +1 / +100 Probability of Success 100%	Buy from NPC Refinement Seller (All Cities) Online Token Rewards Reset Rewards	(Not Forgeable)
Divinity Refinement Item Level +100 / +150 Probability of Success 100%	Buy from NPC Refinement Seller (All Cities) Online Token Rewards Loot from God of Heresy Boss	(Not Forgeable)
Exalted Refinement Item Level +150 / +200 Probability of Success 100%	Forged by NPC Forger (All Cities)	3x Ultra Refinement 3x Divinity Refinement 1x Sacred Stone
Holy Refinement Item Level +200 / +220 Probability of Success 100%	Forged by NPC Forger (All Cities)	2x Sacred Stone 3x Moon Dragon Artifact 80x Pure Coin
Blood Refinement Item Level +220 / +240 Probability of Success 100%	Forged by NPC Forger (All Cities)	2x Sacred Stone 1x Moon Dragon Artifact 4x Bakunawa Artifact 150x Pure Coin
Dark Refinement Item Level +240 / +260 Probability of Success 100%	Forged by NPC Forger (All Cities)	1x Moon Dragon Artifact 1x Bakunawa Artifact 5x Cadaver Artifact 200x Pure Coin
Crystal Refinement Item Level +260 / +300 Probability of Success 100%	Forged by NPC Forger (All Cities)	10x Ultra Refinement 5x Divinity Refinement 5x Straw Freak Artifact 5x Salazar Artifact 3x Cadaver Artifact
Spirit Refinement Item Level +300 / +350 Probability of Success 100%	Forged by NPC Abducter (Ab Dendriel)	3x Baphomet Artifact 3x Rakshasa Artifact 1x Heart of Immortality 500x Pure Coin
Cosmic Refinement Item Level +350 / +400 Probability of Success 100%	Forged by NPC Abducter (Ab Dendriel)	3x Redbone Artifact 3x Colossus Artifact 1x Heart of Immostality 700x Pure Coin
Elemental Refinement Item Level +400 / +450 Probability of Success 80%	Forged by NPC Lynx (Utopia Island)	5x Acromantula Artifact 5x Burzum Artifact 2000x Pure Coin
Sephira Refinement Item Level +450 / +475 Probability of Success 80%	Forged by NPC Lynx (Utopia Island)	7x Demon Knight Artifact 3x Emperor Tokens 2300x Pure Coin
Nevasca Refinement Item Level +475 / +500 Probability of Success 80%	Forged by NPC Lynx (Utopia Island)	5x Akumakori Artifact 3x Pest Eggs 3x Emperor Tokens 2500x Pure Coin
Quasar Refinement Item Level +500 / +550 Probability of Success 80%	Forged by NPC Xarope (Mecanique City)	5x Vapor Artifact 5x Android Artifact 3x Violet Tokens 3x Bipcoins
Orion Refinement Item Level +550 / +600 Probability of Success 80%	Forged by NPC Xarope (Mecanique City)	5x Mantis Artifact 5x Wild Thing Artifact 3x Violet Tokens 3x Bipcoins
Majoris Refinement Item Level +600 / +650 Probability of Success 80%	Forged by NPC Xarope (Mecanique City)	5x Sea Viper Artifact 5x Sky Viper Artifact 3x Violet Tokens 3x Bipcoins
Pulsar Refinement Item Level +650 / +700 Probability of Success 80%	Forged by NPC Xarope (Mecanique City)	5x Necro King Artifact 5x Toxic Titan Artifact 3x Violet Tokens 3x Bipcoins

Refinement Transfer: from Tier 3 Weapon to Tier 4 Weapon

So you became strong enough to get a Tier 4 Weapon! Congratulations!
Now it's time to refine it, right? Efforts you have made to refine your Tier 3 Weapon can be used
when refining your new weapon. You can get a part of the resources used on Tier 3 refinement back.
And then it will be cheaper to refine your Tier 4 Weapon. Instructions:

- Go talk to the NPC: Berhead, the Bearded.
- He stays at Venore inside the Hardrock Tavern (location on the minimap)