Legend of Zelda: Tears of the Kingdom Best item upgrade Upgrade Guide
The upgrade feature for items allows players to increase the level of their weapon, armor and trinkets' quality and get additional bonuses. They also offer a variety of cosmetic effects.
The majority of items will see their value increase when upgraded, with some exceptions. For example, a perfectly roll eth titan could be worth more than 20x its counterparts that aren't upgraded.
Rerolling
The reroll feature lets players to swap out their weapon or armor upgrade to one with different stats. This feature can be used to maximize the value of an upgrade, as it doesn't affect the level of the item upgrader or its bonus. To reroll an upgrade, click on the box icon and then select the "Reroll" option. The new upgrade is random and the original bonus will not be restored.
Rerolling is a popular feature in many gacha games, Best item upgrades item upgrader (why not try this out) including Genshin Impact.