World of Warcraft Item Upgrade
Item upgrade is an evolution item that first came into Generation II. This special item allows Porygon to evolve into Porygon2 while being traded or in possession.

It can be inserted into armor, weapon gear and trinkets in order to provide a bonus effect or boost its attribute value. However, most upgrade items require the item to be at an appropriate level before it can be slotted in.
Recycle points
Recycle points are a kind of item that can be used to upgrade items. They can be obtained from plastic and recycling containers as well as fulfilling missions. You can also earn them through the recycling incentive program which rewards players who take their garbage to recycling bins. These points can be exchanged for cash or household items on the iRecycle store.
To recycle an item, click on it with the right-click, and then press R. You'll get a small amount in books and XP. This can be used to recycle any item, such as bows, weapons, heroes or shields, skills and food. The only exception is the beginning of weapons. This is different from retiring an item, which deletes it and gives an abundance of resources.
Upgrading an item makes it stronger. It increases its health, shield, regeneration, and strength of abilities. It also increases the damage and impact. However, it cannot be upgraded beyond level 10. You can also develop a hero, weapon, or survivor at every 10 levels using pure raindrops and books. The evolution process lasts 20 minutes.
Substats
The sub-stats are random however they can be improved in different ways. Contrary to the main stats which increase with every upgrade, the sub-stats may be increased randomly on any of the four slots. The number of sub-stats an artifact can have is determined by its Rank which is Rank 2, with the Rank 2 having no sub-stats at all, and Rank 5 having five. Each sub-status comes with a range of rarity in which it can be generated in.
If you'd like to increase your probability of getting a certain sub-stat, you can use REFINE ARTIFACTS to increase the chance by four levels. This will cost you MORA. Another method of increasing the sub-stats of an item is to look for duplicates of it. You can then improve duplicates to give them a higher rarity or a different set sub-stats. If you're a high level player, this could be a useful strategy for improving your character's DPS. However, you should be careful not to overdo it and risk wasting your MORA.
Reroll tokens
Reroll tokens let players roll the item currently being used by the unit. When rerolling, an item will be exchanged with a version that is level 1 of the same item, but with additional bonuses and a new type of equipment (such as knives, cups or watches, or books). In some instances it is possible to significantly increase its value. However the item will not maintain its ilvl and rerolling is only useful when an item has rare affixes.
Rerolling an object resets its power base as well as all upgrades and substats. This can be useful if the power of an upgraded item is less than the desired level or if the user would like to have different substats on an existing ring. Reroll tokens can be obtained from a variety sources like the skulled creature, mystery box or as a reward after killing the boss.
Weapons, armor, rings and other accessories can be transformed. Weapons can be rerolled for physical power, spellpower, or health. Rings can be rerolled for damage or durability, while armor can be rerolled to lessen damage or boost defense. Rerolling a piece of equipment that has been crafted can result in a rare item of the same sort. Rerolled items don't retain its owner's ilvl, and any resources wasted are not refunded.
The rerolling process can be done by pressing the green button that has a circling arrows on the menu for items. But, the button will not be displayed on any item that is currently equipped by an item. To reroll an object the player must have at least one token for reroll in his inventory. This button requires the player to select which stat they wish to reroll and then confirm the action. Rerolls can take longer than you expect in certain instances. This is a result of the rerolling system being able to provide numerous possible combinations. In item upgrade can also use a second reroll token to speed up the process.
Item level
The level of an item is a vital statistic that indicates how strong an item is. It's used by players to compare items, and help players decide which is the most powerful for their playstyle. It also lets players to upgrade gear that was previously rated by the community as overpowered. It's important to know that item level isn't a planned development feature, but rather an opportunity to differentiate items in the game currently.
The levels of items are determined by the average ilvl of the equipment of the player, which includes the main hand and off-hand weapons. It also considers the ilvls of all the slots for gear that can be upgraded, but not the shirts or tabards. This includes rings, cloaks shoulders, neck, chest back, wrists, hands, feet and legs, waist and weapons in the off hand. The ILVL is considered twice since the main and off-hand have different iLevels.
The iLevel of an item determines the stat priority it has. Based on the spec and class some stats have a higher value than others. For example, crit rating is expensive while haste rating is relatively cheap. Item level also determines how much of the budget for the item's ilvl is spent on secondary and primary stats and how much left for procs and effects.
It is important to have the right equipment for your character. This will enable you to move faster through the game and gain access to more areas. The higher your level of item the more damage you can inflict on PvP.
You'll need the appropriate materials to upgrade an item. For weapons, you'll need Destruction Stones. For armor, you'll need Harmony Leapstones and Guardian Stones. These items can be acquired by clearing content up to the level of your character's item. You can also buy items at the Auction House. Be wary of auction prices as they can be expensive. If you are looking to save money, purchase items from a seller who is selling them at a discount.