The Golden Upgrader lets you enchant yourself instead of items and tools. Each enchant costs 10 levels for level 1, 20 levels for level 2 and 25 levels for level 3. Note that these enchants dont have names such as sharpness or stuff like that. You can see the level of all these enchants by clicking the inventory button and pressing self enchants instead of my inventory. There’s also a spelling error I put purposely as a Easter Egg.
These are the enchants that can be applied(feel free to add some yourself as well):
Damage- lncreases the damage output from any item and your fist by half a heart per level.
Health- Increases the max health you have by half a heart per level.
Xp boost- Increases the amount of xp you get by 5 ( not xp level just xp) per level.
Defense- Decreases your amount of damage taken while also increasing your knock back resistance.
Speed- increases your speed by 10% per level.
Hand speed- Increases your speed your attacking and mining speed by 5% per level.
Enviromental protection- Decreases the damage dealt by environmental things (for example lava) by half a heart per level.
Potion duration- Increases the duration of good effects while decreasing the duration of bad effects by 10 seconds per level.
The Golden Upgrader is crafted like this:
G= gold, e= enchantment table, Ns= nether star, X= bottle o enchanting
G-G-G
X-E-X
G-Ns-G