Reforging

Reforging is a feature introduced in the 1.1 patch, and can be used to modify most weapons and accessories. Items that are excluded include armor, vanity items or special items such as the Grappling hook.

Purchasing a reforge from the Goblin Tinkerer applies modifiers to the item being reforged, such as improving damage, increasing movement speed, improving the defense bonus for the item, and so on. Possible modifiers also include bad ones that will make the item less desirable, such as making a weapon do less damage. Accessories and Weapons have separate lists of possible buffs/debuffs, and different weapon types also have slightly different lists (range weapons can have improved firing speed, while melee weapons can have improved size which increases hit-range, while spells have reduced mana cost). Reforging an item chooses one buff/debuff from its applicable list at random. Multiple reforges on an item do not stack: reforging an item will overwrite any existing buff on the item. Items can be reforged many times with no penalty. Each buff/debuff has a name and color. The best buffs for weapons will apply 5 different buffs (examples below).

Requirement
In order to reforge items, there are three different things that need to be obtained :

- Goblin Tinkerer (NPC villager)

- An amount of money, depending on the items value. (Standard Copper Shortsword =3.50 silver, Sunfury =3.70 gold). The cost is five times the sell value.

- An item to Reforge.

Known Modifications
Some of these values will be lower / higher on different weapons, but the attributes will be roughly the same :

Legendary Copper Shortsword : +20% damage, +8% speed, +5% critical strike, +10% size, +15% knockback

Legendary Excalibur : +15% damage, +12% speed, +5% critical strike, +10% size, +15% knockback

Legendary Muramasa : +17% damage, +10% speed, +5% Critical Strike, +10% size, +15% knockback

Different percentages indicated in bold to display difference, however, they still have the same modification of Legendary (above).

The following Headings and dot points show all the known modifications of each of their class, based off of a lower leveled item. (below)

Melee Weapons (based off Copper Shortsword)
Flails, spears, boomerangs and chainsaws cannot be reforged above Godly due to stat restrictions. Drills with no knockback cannot be forged to Godly. Theres a glitch with copper axes which to not allow a 2 tier reforge.

Edit: For flails, this is not true. Flails may be reforged to Legendary.

Positive Attributes
 5 Bonus Stats:  


 * Legendary ( +15% damage, 12% speed, 5% critical strike, +10% size, +15% knockback )

 3 Bonus Stats:   (Murderous only on Silver tier and above)
 * Godly (+15% damage, +5% critical strike, +15% knockback )
 * Superior ( +20% damage, +3% critical strike, +10% knockback )
 * Savage ( +20% damage, +10% size, +10% knockback )
 * Dangerous ( +5% damage, +2% critical strike chance, +5% size )
 * Murderous ( +11% damage, +7% speed, +3% critical strike)

 2 Bonus Stats:  
 * Demonic ( +20% damage, +5% critical strike chance )
 * Agile ( +8-10% speed, +3% critical strike chance )
 * Deadly ( +20% damage, +8% speed )
 * Unpleasant ( +6% damange, +15% knockback )

 1 Bonus Stat:  
 * Sharp ( +20% damage )
 * Pointy ( +20% damage )
 * Hurtful ( +20% damage )
 * Strong ( +15% knockback )
 * Forceful ( +15% knockback )
 * Quick ( +8-10% speed )
 * Nimble ( +8% speed )
 * Zealous ( +5% critical hit chance )
 * Keen ( +3% critical strike chance )
 * Massive ( +18% size )
 * Large (+12% size )

With Positive and Negative Attributes
4 Stats Added:
 * Bulky ( +5% damage, -15% speed, +10% size, +10% knockback )
 * Nasty ( +5% damage, +1% speed, +2% critical strike chance, -10% knockback )

3 Stats Added:


 * Shameful ( -20% damage, +10% size, -20% knockback )

2 Stats Added:


 * Heavy ( -8% speed, +15% knockback )


 * Light ( +15% speed, -10% knockback )


 * Ruthless ( +20% damage, -10% knockback )

Negative Attributes:
 3 Stats Added:  
 * Terrible ( -20% damage, -13% size, -15% knockback )
 * Unhappy ( -8% speed, -10% size, -10% knockback )

2 Stats Added:


 * Broken ( -40% damage, -20% knockback )
 * Annoying ( -20% damage, -15% knockback )
 * Shoddy ( -20% damage, -15% knockback )

1 Stat Added:


 * Damaged ( -20% damage )
 * Dull ( -20% damage )
 * Weak ( -20% knockback )
 * Sluggish ( -23% speed )
 * Slow ( -15% speed )
 * Lazy ( -8% speed )
 * Tiny ( -18% size )
 * Small ( -10% size )

Ranged Weapons (based off of Wooden Bow and above)
 Note:  ''' Modifications on ranged weapons are very limited on low-level items. The more powerful modifications are only available on higher tier weapons. '''

Positive Attributes
 5 Bonus Stats: 
 * Unreal (+16% Damage, +10% Speed, +5% Critical Strike Chance, +10% Velocity, +15% knockback, stats from Adamantite Repeater)

3 Bonus Stats:
 * Godly (+13-15% Damage, +5% Critical Strike Chance, +15% knockback)
 * Superior (+9% Damage, +3% Critical Strike Chance, +10% knockback, stats from Megashark)
 * Murderous (+6% Damage, +4% speed, +3% critical strike chance, stats from Mythril Repeater )

2 Bonus Stats:
 * Demonic (+25% Damage, +5% Critical Strike Chance)
 * Sighted (+17% Damage, +3% Critical Strike Chance)
 * Rapid (+13% Speed, +10% Velocity)
 * Hasty (+10% Speed, +15% Velocity)
 * Agile (+10% Speed, +3% Critical Strike Chance)
 * Deadly (+10% Damage, +10% Speed)
 * Staunch (+9% Damage, +15% knockback)
 * Unpleasent (+4% Damage, +15% knockback)

 1 Bonus Stat: 
 * Hurtful (+15-20% Damage, Copper Bow and above)
 * Zealous (+5% Critical Strike Chance)
 * Keen (+3% Critical Strike Chance)
 * Quick (+10% Speed)
 * Nimble (+10% Speed)

With Positive and Negative Attributes
3 Stats Added:


 * Powerful (+25% Damage, -10% Speed, +1% Critical Strike Chance)

2 Stats Added:


 * Frenzying (-25% Damage, +13% Speed)

Negative Attributes
2 Stats Added:
 * Annoying (-25% Damage, -13% Speed)
 * Lethargic (-13% Speed, -10% Velocity)

1 Stats Added:
 * Damaged (-25% Damage)
 * Sluggish (-20% Speed)
 * Slow (-13% Speed)
 * Lazy (-7% Speed)

Magical Weapons (based off of Vilethorn)
The "Star Cannon" is counted as a magical weapon regarding the reforge process. It seems as if it can't get 4 bonus stats.

Some weapons in the Positive Attributes will have Negative Percentages but this is due to these weapons costing mana to use (If they have, say, a reduced mana cost of "-17%" That is therefor good because you wont waste as much mana.)

Positive Attributes
 5 Bonus Stats:  

(take note of the negative percentage for mana cost)
 * Mythical (+14% Damage, +12% Speed, +5% Critical Strike Chance, -7-20% Mana Cost, +15% Knockback)

 3 Bonus Stats:  
 * Godly (+12% Damage, +5% Critical Strike Chance, +15% Knockback)
 * Superior (+12% Damage, +3% Critical Strike Chance, +10% Knockback)
 * Masterful (+12% Damage, -17% Mana Cost, +5% Knockback)
 * Murderous (+12% Damage, +7% Speed, +3% Critical Strike Chance)

 2 Bonus Stats:  
 * Demonic (+12% Damage, +5% Critical Strike Chance)
 * Deadly (+12% Damage, +10% Speed)
 * Agile (+10% Speed, +3% Critical Strike Chance)
 * Mystic (+12% Damage, -25% Mana Cost)

 1 Bonus Stat:  
 * Hurtful (+12% Damage)
 * Quick (+10% Speed)
 * Nimble (+7% Speed)
 * Zealous (+5% critical strike chance)
 * Keen (+3% critical strike chance)
 * Strong (+15% Knockback)
 * Forceful (+15% Knockback)
 * Adept (-17% Mana Cost)

With Positive and Negative Attributes
4 Stats Added:


 * Celestial (+12% Damage, -10% Speed, -8% Mana Cost, +10% Knockback)

3 Stats Added:


 * Furious (+12% Damage, +17% Mana Cost, +15% Knockback)
 * Manic (-12% Damage, +10% Speed, -8% Mana Cost)
 * Taboo (+12% Speed, +8% Mana Cost, +10% Knockback)

2 Stats Added:


 * Intense (+12% Damage, +17% Mana Cost)
 * Ruthless (+12% Damage, -10% Knockback)

Negative Attributes
2 Stats Added:


 * Annoying (-25% Damage, -13% Speed)
 * Broken (-25% Damage, -20% Knockback)
 * Ignorant (-12% Damage, +17% Mana Cost)
 * Shoddy (-12% Damage, -15% Knockback)
 * Deranged (-12% Damage, -10% Knockback)

1 Stat Added:


 * Damaged (-12% Damage)
 * Slow (-13% Speed)
 * Lazy (-7% Speed)
 * Weak (-20% Knockback)
 * Inept (+8% Mana Cost)
 * Sluggish ( -23% speed )

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Accessories
Each accessory can have the values 1 to 4. Either as a flat amount or as a percentage.

Damage Stat
 * Jagged ( +1% Damage )
 * Spiked ( +2% Damage )
 * Angry ( +3% Damage )
 * Menacing ( +4% Damage )

 Defense Stat 
 * Hard ( +1 Defense )
 * Guarding ( +2 Defense )
 * Armored ( +3 Defense )
 * Warding ( +4 Defense )

 Movement Speed Stat 
 * Brisk (+1% Movement Speed )
 * Fleeting ( +2% Movement Speed)
 * Hasty ( +3% Movement Speed )
 * Quick ( +4% Movement speed )

 Melee Speed Stat 
 * Wild ( +1% Melee Speed )
 * Rash ( +2% Melee Speed )
 * Intrepid ( +3% Melee Speed )
 * Violent ( +4% Melee Speed )

 Critical Strike Stat 
 * Precise ( +1% Critical Strike Chance )
 * Lucky ( +2% Critical Hit Chance )

 Others 
 * Arcane ( +20 Mana )