Why You Should Focus On Making Improvements In Upgrade Item
World of Warcraft Upgrade Item Guide

The Upgrade item is a special evolution item that trainers can utilize to evolve Porygon into Porygon2. This change requires an upgrade, an Sinnoh Stone, and 50 Porygon Candy.
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Upgrade components
Upgrade components are things that can be slotted into weapons, armor trinkets and gathering tools to give a bonus or extra effect while the equipment is being utilized. They can be bought from vendors or players, scavenged or gotten as rewards, or constructed with crafting materials. Alongside providing bonus points upgrades can also be cosmetically beneficial.
Infusions, inscriptions, as well as enhancements are a type of upgrade components. They are not generally available for general use, and are only available to ascended equipment or some non-ascended weapons from the Factions campaign. Infusions can be recovered, inscriptions and enrichments from equipment using an Infusion Extractor Device or by salvaging using a Black Lion Salvage Kit, or an Ascended Salvage tool.
Unlike item upgrader , Phoenix Boxes can be traded while attached to the item that they are upgrading, and they can be re-used after being reclaimed. These upgrade items are the most effective way to improve quality of armor and weapon without spending Dilithium because they can increase the item's chance of receiving a high-quality upgrade by two times.
A component that is upgraded in an item may be replaced by another however, it will destroy the original one (except for upgrades to legendaries and equipment that has been ascended). Only upgraded items with an identification level of 0 or more can include upgrade components them. If you upgrade the weapon already equipped with a suffix or a prefix upgrade, the item will be named as it appears on the game screen (for instance, adding a Radiant insignia to Canthan Armor makes it Canthan Armor Minor Vigor). A player can own up to three upgrade item s at a time.
Glyphs
Glyphs can be a great addition to any item. They offer unique advantages and boosts. Some glyphs can also increase the number of affixes that can be placed on an item, thereby increasing its overall power. These glyphs are obtained by the completion of the dungeons. Some can even be found in specific World Tier 3 zones. It is important to note that glyphs can only be used by characters who have created a dungeon that has the same depth.
To use a Glyph you first need to create it using components and then connect them using anchors. Then, the component will automatically align itself to other components and paths within the same layer. If you don't wish to create the glyph using components, you can use an array of anchors and paths. Drag an element near the component that is highlighted to hold it into its place.
Some glyphs require certain conditions to be met, such as 25 Dexterity in a particular area on the Paragon Board. Some require a specific number of Primary Stat nodes to activate, which can be difficult to achieve. Some glyphs have a radius, which increases as you move up.
Glyphs can be applied to a variety of weapons and objects, except for those of a specific class. Certain glyphs come with additional requirements, for example the requirement for a certain amount of Dexterity damage, or Attack damage on a specific area of the Paragon board.
The Defend Glyph has a 5% chance to deflect attacks from enemies. It also has a 15% chance to render the Hero vulnerable for 2 turns.
Some glyphs can also be applied to limited use tools, like the Black Lion Chest and Trading Post. The addition of these glyphs will contribute to the Combat Mechanic achievement.
The most popular glyphs used in the game are the attack glyphs which boost Artifacts' ATK substats by a fixed value. These glyphs are especially useful for classes that employ weapons that are ranged, like Warriors or Rogues. The Exploit Glyph makes enemies who attack the Hero vulnerable to damaging effects.
Reroll tokens
Reroll tokens can be used for rerolling a result rolled during an Action. After the reroll is completed the tokens are then discarded. Reroll tokens can be obtained in many ways, such as through raids and dungeons, or by participating in skirmishes. You can also purchase them in the store, or from other players. They are especially useful in dungeons or trials because they allow players to roll the rewards of the final chest.
Recycle point values are provided for items at level 1. When an item is recycled, it will add a certain amount of points to the upgrade gauge. This number will increase depending on the item's value and rarity. Additionally, the upgraded item won't keep its level after rerolling and the cost of recycling an upgraded item increases with its level.
It is also possible to use reroll tokens to roll an item. However, this will not restore the item's original stats or level. This is useful for those who wish to reroll an item they don't love, but want to keep it in their collection.
Three different kinds of upgrade coins are available in the game: reroll, randomly generated, and upgrade. Each type comes with its own subtypes. For instance, tokens that reroll come in three different levels: rare, enhanced and legendary. Each requires an item of the respective level to produce an item of the same quality.
To make use of reroll tokens, right-click the Satanic or Angelic item in the inventory and select "Reroll Token". Select the type of token. The available tokens include Item Weapon, Misc, 1hgun, 2hgun and Focus. The use of an Item token will create an entirely new Item of any type. A Weapon or Misc token produces a new weapon from the same faction.
The item could also be upgraded to a different item that has the same stats but a higher level. This is likely to occur if the item been placed in the Non-Droppable Pool or if it was transferred to the pool as part of a franchise card.