Path of Exile Item Upgrading
The ability to upgrade items allows players to upgrade their weapons and gear by adding new affixes, boosting its base stats or providing additional benefits. To upgrade an item, the player has to have it in their inventory as well as access to the kiln.
Items with weak bases, such as rings, can be upgraded into stronger bases. Items with strong bases, such as the Titans of eth have little change in their stats.
Upgrade components
Upgrade components can be slotted into trinkets, weapons, armor and tools for gathering, offering an added bonus or impact when the equipment is being used. They can be bought from vendors, found in loot from enemies, or gotten from chests or missions. Certain upgrades can also be equipped with special cosmetic effects. Most upgrades require the equipment to be above a certain point before they are upgraded.
To upgrade a weapon, armor or other item in the game, the player will have to select it and then click on the Upgrade button in the toolbar. This will display on the right-hand side of the screen a preview that shows the expected upgrade stats as well as the necessary component or materials.
There are three types: universal upgrades (which include gems) Prefix upgrades and suffix upgrade components. Universal upgrades, like gems, can be placed on any type of equipment. They offer a lower bonus than upgrade components that have a specific type limitation. Infusions are only placed in gear that is ascended and legendary equipment, are the same as jewels but provide larger bonuses and cannot be placed in any other equipment. Suffix upgrades are able to be placed in gathering tools, add their name to the end of the name of the item they are connected to, for example adding a Glyph to an item that is a Staff Wrapping of Minor Vigor will transform it into a Canthan Staff Wrapping of Minor Vigor.
In the case of upgrades to gather tools when a player swaps one glyph by another the old glyph will be returned to the inventory. If you replace any other upgrade component the item will be destroyed, with the exception for inscriptions, which are able to be swapped.

Leveling
The upgrade system in Path of Exile has some significant differences from the previous versions. Gear is now divided into tracks and items can only be upgraded a set number of times before being "leveled out." The cost for upgrades is increased with each level however, the materials needed do not increase as much. This lets players focus their efforts on a handful of important items to maximize their impact, instead of spreading cost of upgrades across several items.
This will enable the item to receive new upgrade components and a greater chance of success. This bonus is referred to as the Artisan's Power and it resets to 0 in the event of failure, or increases when the upgrade is successful.
When a piece is upgraded to the maximum level, it can receive affixes to boost its attributes. The number of affixes available depends on the type of item it is. For example an uncommon or rare weapon with a base that is normal will only have two affixes available for it and legendary armors will have up to eight affixes for it.
Each upgrade process will require a specific amount of Flightstones or Crests, based on whether the item is at its current level and in what slot it is placed in. Weapons will typically require more Flightstones than other equipment.
If an item fails to attain its maximum level, the NPC grants the player the option to transfer it to a different character and then re-infuse it with a different set of upgrades. This process can take up to two hours and will cost the same amount of materials however it will have lower chances of success.
To measure the height of a building, engineers will use an instrument to compare the measurement against an established reference point, like a benchmark, or the elevation of the ground. This method is known as a "level loop." It involves taking readings with the backsight rod and level, then turning the level to make the foresight rod reading. This method makes sure that buildings are constructed to a high level of accuracy and safety.
Rerolling
Rerolling is the process of altering the upgrade components of an item. It is a very important element of the game and can improve an item's damage, strength or other attributes. You can do this through the item menu, or by pressing the Reroll button when you upgrade an item. Rerolling is costly and should only be used in very rare instances.
The game allows players to recycle upgraded items, and use them to earn tokens for rerolls. These tokens can then be used to upgrade the original item, or to upgrade another similar item. Recyclable items come with an indicator that indicates the degree of upgrade. The amount of level that has been filled is based on the rarity and cost of upgrading of the item.
In the past, some upgrade items were affixed with priority that made them easier to roll for than other. This meant that you'd get the most crucial stats for your build more frequently than others. This included stats like armor's total armour, thorns, and the control impaired duration stats or the weapon's bonus attack speed and strike chance.
This changed with the recent patch. Priority affixes have been removed, and all upgrades have the same chance of rolling each statistic. This can be a good or bad thing depending on your requirements and expectations from your equipment.
Each upgraded item could be equipped with a special fixed-value bonus that boosts its strength by a certain percentage. These bonuses are added over the standard affixes. The more you upgrade your product, the greater your chances of receiving a unique bonus.
item upgrades comes with number sets that grant a bonus when three or four upgraded items from the set are placed on an item. This is a great way to add a lot of power to a particular character without spending a lot of money.
Many players choose to reroll their equipment and weapons, particularly in the early stages of the game. Rerolling can offer a quicker route to becoming a strong character and allows them to climb higher levels and advance in the game more quickly.
Sets
Sets are collections that can be organized in different ways. They can have different sizes, contain no elements at all, or contain a single element. They are useful for organizing data or sorting information. They can also be used to study patterns. Sets can be classified in many ways, including size and shape.
There are a range of set items available to upgrade in The Legend of Zelda: Tears of the Kingdom. Certain items are worth upgrading, others aren't. Armor sets that provide high defense values or set bonuses are typically worth upgrading. However, weapon upgrades often do not improve the stats of the item when as compared to their counterparts in purple. This makes them less appealing to upgrade when your collection of armor and weapons pieces is already huge.
Certain set items are upgraded for their own special functions, which can be particularly useful in certain builds. Guillaume's Face face and Aldur's Advance boots are a good example of this. Both were upgraded to Exceptional Winged Helms as well as Exceptional Mirrored Boots, respectively. This increased their defense from 217 to 321. (Strength requirements and Level requirements also increased).
Upgrades can also be made to bring certain items to parity with the levels. For example, the Immortal King set has a wide range of levels, ranging from 29 to 76. item upgrade to lower-level items of the set can increase their defense and make them more competitive in terms of damage.
Clicking the Upgrade button will display the attributes of the item and the necessary items needed to upgrade it. It will show the item's characteristics, as well as the necessary items required to upgrade it. To upgrade the No-mouth face for instance, 1.1K Scrap Materials will be required, 250 Enchanted Dust and 5 Glowing Shards. Alternately, players can go to the Leaderboard or Golden vendor in Cyrodiil to see the upgrade requirements for specific items.
In general, weapons and jewelry offer better trade value when fully upgraded than armor. Upgrades to gold are recommended for weapons with spell/weapon-damage glyphs. This will result in a significant increase in their performance. Armor that has an upgraded appearance will also benefit from this, since its defense value will increase when it goes from purple to gold.