Diablo 4 Item Upgrades
Items upgrades are upgrade components which can be added to weapons, armors and trinkets in order to earn a bonus. They are generally more expensive and require that the item be of a certain rank.
Upgrades aren't always worth it for items with high requirements. This is particularly true for items like the Titans of eth that don't have a lot variance.

Glyphs
After reaching level 50 in Diablo 4, Blizzard's action-RPG takes a turn from its simplified campaign into the endgame. After level 50, Diablo 4's action-RPG changes from its simplified campaign to the final.
Glyphs play an important role in this development. Glyphs' stat attributes and effect radius on the Paragon Board are boosted by increasing their upgrade level. There are several ways to gain these upgrades, however most players will find themselves relying on the primary method of raiding Faction Crypts.
The Glyphs panel allows you to add glyphs to your text by choosing the appropriate option from the menu that is located on the left of the screen. The Glyphs panel shows glyphs based on the font in which your cursor is currently located. You can change the font or typestyle, and narrow down the list to include only punctuation symbols using the option below the Entire Font. You can see the CID/GID value as well as the Unicode value of a glyph by moving your cursor.
After you've entered several glyphs after which the Glyphs panel will keep track of the last 35 glyphs you used and display them under the category of Recently Used on the first row of the panel (you must expand the panel to see all 35). You can also remove them from this list by right-clicking or Control-clicking a one of the glyphs in the list, and selecting Remove From Recent Glyphs.
Another advantage of the Glyphs panel is that it allows you to create and modify an individual glyph set which is beneficial when you need to type certain types of text often. This will prevent you from having to manually insert each glyph every time you require it.
A custom glyph can have up to 30 glyphs. This includes the base name as well as its suffix. The glyphs in the base name must be uppercase English letters (A-Z), lowercase English letters (a-z), European digits (0-9) and underscore (_). The suffix can also include ligatures or contextual alternatives. These are special versions which combine two or more letters into a single glyph.
Reroll Tokens
Upgrades are the principal mechanics that provide extra bonuses to items, like stats. Upgrades come in types: rerolls levels up, recycle and reroll. Each upgrade type comes with a unique bonus on the item.
Reroll Tokens permit players to change the power of an item's base and the number of upgrades available, and can also be used to reroll ring substats. This is helpful when a player wishes to upgrade an item, but the "potential" potential power of that item is not what they're looking for. Or, if their item's substats aren't optimal.
Rerolling costs 1 token, and will reset the item's upgrades, but will keep the set, rarity and level unaltered. Leveling an item up increases its tier and with each tier, the main stat is increased by +3, and a random extra stat is added to it. Leveling an item to its highest possible level increases its level by 1.
The Blueprint Desk is a tool that lets players buy new Appliances, Ingredients and decorations for their restaurants. Blueprints are available at the beginning of each Preparation Stage and appear as envelopes that can be opened by pressing Grab. Each blueprint is branded with a distinct icon, and each category of upgradable item displaying various icons:
Choosing a franchise card from the Blueprint Desk will allow you to purchase certain appliances or ingredients that are required in certain recipes. Some Appliances and Inputs are staples, meaning that they will not be available in the Shop or on rerolls, while others have a greater chance of being available when a specific franchise card is chosen at the Blueprint Desk. The Staple Pool is where all the items will be for the duration of the game. When purchased from the Blueprint Desk, non-staple equipment is also transferred to the Seed Pool.
Recycled Items
The third "R," recycle, is where the magic really occurs. When you recycle a product that is made from recycled materials you're not just helping the environment but also giving the item new life. The majority of recycled items are sent back to their original manufacturer to be remade as an entirely new product. We refer to this as "closing of the loop of recycling."
When a person puts something in their curbside recycling bin it is taken to a Materials Recovery Facility where it is separated and sorting. Then, it gets transferred to manufacturers who will then re-make the item. Items that are often made into new products are:
This reduces the need to plant harvest or extract raw materials from the Earth to make something new. This in turn reduces the amount of damage that is caused to the natural environment; fewer trees are trimmed down and rivers diverted, as well as wild animals displaced. item upgrades reduces pollution from the disposal of raw materials into our soil, water and the air.
Additionally buying recycled products can help keep local businesses and jobs in business, particularly those that specialize in making goods using recycled materials. Demand for recycled products encourages businesses to participate in this eco-friendly initiative.
A final reason to purchase recycled products is that it takes less energy to create new items from recycled material than it does to make them from raw materials. The manufacturing process for an aluminum container that is new requires 95% more energy than the production of a can made from recycled material. Every little bit counts.
Leveling
Most units are able to upgrade their level, which gives them additional XP each time they fight or get attacked. This XP can be used to increase the primary stat of the unit or unlock additional improvements on the unit's development tree. Weapons are a great example, as they can level up and increase their damage as well as range.
Most levels require a certain number of levels to be achieved, though this may vary from game to game. Making use of coins or other materials is the only method to level up. Most systems use both to boost an item's level, but some only make use of one or the other.
In many games, leveling is a problem because it makes certain units too powerful, while other units are unable to compete. It is recommended to limit the amount of leveling a player can perform, requiring players to make a decision regarding what they would like to upgrade and the reason for it.