World of Warcraft - Item Upgrading
The upgrade of an item allows players to increase an item's gear score up to 700 and add an additional perk. Items can be upgraded by keeping them in inventory, and then taking them to the kiln.
Certain items can be upp'd to increase their stats (like an ideally broken point armour that is rolled for melee PvP) while others like weapons don't change much post upgrade, and therefore aren't worth upgrading.
Weapons

Upgrades to weapons can boost their numerical stats, including attack damage, crit chance and PvE/PvP damage. Weapons also have a flat bonus which increases their damage per second. Many weapons also come with a fixed bonus that is activated when three or more identical weapons are used in a single unit. In some instances, this bonus can add up to more than the amount of damage a weapon is able to upgrade on its own.
The cost of upgrading a weapon varies on its rarity and level. For instance an item with a rating of +2 will require two regular Smithing Stones to upgrade while the +3 model requires four. The number of stones needed to upgrade a gun will increase until it requires more Smithing Stones. At that point it will reset to one.
Upgrading weapons will also reroll their base stats. This is usually a good aspect, but it may also have negative consequences. For items that only see use in a specific build (Whistant's shield for FB sorcs, for instance), upgrading them may render them useless unless you get a lucky roll.
The ability to upgrade armor items to improve their performance. This can increase the defense base of a chest or helm while belts and gloves can boost their strength and agility. Armor also has an option to reroll its Enhanced Defense percentage, which means that it could change its roll to a lower value.
The upgrade template of a weapon will display the new stats it will gain when upgrading, as well as the values of these stats. This means that the weapon will gain an attack damage of 3% if it is upgraded from an 8 attack damage sword to an 11 attack damage sword. However, the 3% doesn't mean that it will be hit 3 times less often because it's an absolute statistic.
A weapon can be rerolled by pressing the green button that has circling arrows in the menu for items. This will reroll the item and alter its stats, but it won't reset the weapon's levels or connect to the status of your account.
Armor
A few upgrades to your armor can make the world of difference to your survivability. Certain sets can provide MASSIVE improvements in the resistance to curses, poison, fire, and magic. This can make it easier to get through difficult areas. In general, the more defense you can offer your character, the more health you can gain from each point. So, it's best to upgrade your armor.
You can upgrade your armor by visiting one of the Great Fairy Fountains. There are four fountains in all and each one requires you to complete a specific side quest involving the Stable Trotters musical troupe. Once you've completed the primary side quest and completed the corresponding fountain and then you can speak to any Great Fairy to open up the armor upgrade menu.
Each piece of armor can be upgraded to three levels and the amount of material and Rupees required to complete each level will differ. In general, you're looking at anywhere between three Red Chuchu Jellies and ten Rupees for the first upgrade, and then anywhere from five Rubies and 10 Fire-Breath Lizalfos Horns for each subsequent one. The Champion Leathers, for example, can be upgraded to an increase of 5 defense rating, which will allow you to remain competitive in cold environments with a large number of enemies. The Snowquill Headdress, on the other is able to be upgraded to +20 defense to ensure you're able to withstand a rout with your friends.
It's important to note that armor cannot be upgraded the same way as weapons, so you'll have to concentrate on upgrading it to gain physical strength if you're a Warrior or Spell Power when you're a Mage. It is recommended to save your armor upgrades to upgrade the armor that you'll still be wearing by the end of the story, for example the Ring of Lightning, Spectral Shield or the mask you use in the final boss fight, the Monter Parts Merchant Mask.
You can also unlock some benefits to your armor by presenting the jeweler in Gerudo Town 10 Twinkling Titanite. You'll generally want to save these upgrades to the weapon that you'll use to beat the game. For instance the Longsword or Battleaxe. It's nevertheless beneficial to have some upgrades for the chest armor and helmets so that you can get around a few monsters.
Potions
Potions are liquids that when consumed by the player, give a temporary effect. There are five types of potions, each with different effects and durations. Some potions may be upgraded, enhancing the effectiveness of their effects. You can also enhance the effects of certain potions by including glowstone dust and redstone.
Upgrades to potion cost a certain amount of XP. This can be earned by crafting them using a craft table or the chest of the Alchemist. However, the cost of upgrading is dependent on the kind of potion you wish to upgrade, and also on the item's Mark Level and Rarity.
To upgrade a potion simply right-click on it in your inventory. Then, select "Upgrade" from the menu. This will open an GUI that allows you to select the potion you would like to upgrade and the amount of experience they will give you when upgraded. You can upgrade potions in batches up to five at a time, and their XP will be added to the total amount of XP you have.
Once a potion has been upgraded, it will not degrade until you use it again, or break the bottle it's stored in. You can also change the name of the potion by clicking on it in your inventory.
There were some changes to the mechanics of potions in version 1.7.2. For instance, splash potions now have a duration of zero,08 seconds (this is not the same as 22.5 seconds displayed on the hover display for the item). The table of potion can now be crafted with four Wood Planks and two Glass. This allows it to be used by players playing Survival and Bedrock. Bedrock Edition potions aren't compatible with cauldrons, as is the case with Java Edition. Additionally, using a potentio on a full cauldron, it drains the liquid and refills the bottle.
In addition, there are lingering potions, which are made with splash and dragon breath potions. In the same way, a lingering potion' effect is extended by adding redstone. The table of potion ingredients has been rearranged to appear more like the Java Edition. New potions have also been added, such as the potion of leaping and decomposition.
Trinkets
A trinket is a tiny and affordable ornament or piece of jewelry. It could also refer to an object or ornament that serves a function but isn't essential as a trinket. In some cultures, a trinket is used to express friendship or affection between family members.
Players can upgrade trinkets as well as weapons or armor, as well as potions. Upgrades can be purchased by paying the appropriate currency to an upgrade vendor. As with other upgrades to items trinkets are able to be traded out at any time without losing their status.
The upgrade vendors are located in major cities and in the capital of each zone, as well as in some instances in dungeons. item upgrading for trinkets are purchased using tokens, gold or fragments of a rare trinket.
The upgrade of a trinket can be an economical alternative to buying new ones. You can upgrade a trinket for as little as 12 tokens. The new trinket will come with the same base ilvl as the older one, and come with an additional 1% upgrade bonus.
Once the old Trinkets have become no longer useful, they can be upgraded. This allows a player to increase their power and value with time. They can also be traded between players and are an extremely popular alternative to gold.
In general players should make upgrades to their top-priority items first. This usually refers to the most valuable-in-slot items for their class, then their secondary items and finally, other gear items that they will not be replacing in the near future (for example, a ring or cloak). When deciding which items to upgrade, players should also take into account the preferred statistics of their class. For instance If Haste and Crit are the two most important stats for tankers, they should prioritize upgrading their helm, chest shoulders, belt, and helm.
Once they have become useless trinkets can be upgraded to a greater level. The upgraded trinket will give you an additional bonus of 1. A re-upgrade, however, can cause damage to the trinket unless it is salvaged using the help of a Black Lion Salvage Kit, or a salvage tool. This makes upgrading trinkets more expensive than other upgrades, but is still cheaper than purchasing a new one.