Nadir

⚡ Eterna - raw enchanting power, increases enchanting level

Example: 15 Eterna allows for enchanting at level 30, while 30 allows for enchanting at level 60

Max value: 30

🔥 Quanta - chaos, amplifies the enchanting level by +- half of its value

Example: 50 Quanta would mean that its amplification potential ranges from -25% ~ +25%

Max value: 100%

🧪 Arcana - secondary power, gives a chance to roll enchantments twice

Example: 25 Arcana gives a 25% chance to roll enchantments twice

Max value: 100%

☯️ Rectification - zen, decreases Quanta's reduction potential

Example: 100 Quanta and 50 Rectification would mean that Quanta's amplification potential ranges from -25% ~ +50% (-(100 / 2 * 0.5) ~ +(100 /2))

Max value: 100%

• ⚔️ Sharpness - can be applied to Tridents and Maces.
• ⚔️ Smite, Bane of Arthropods - stack with Sharpness and each other, changed damage increase to +10% * (level + 1) (total of +60% at level V). Both enchantments can be applied to Tridents and Maces.
• ⚔️ Knockback - reduced knockback by 33%.
• ⚔️ Sweeping Edge - reduced enchantment efficiency.
• 🛡️ Protection - reduced base damage reduction per level from +4% to +2.5% and increased max level from IV to V.

This means that maximum damage reduction is now 50% with full Protection V armor, while in vanilla it is 64% with full Protection IV.

• 🛡️ Blast Protection, Projectile Protection, Fire Protection - now stack with all Protection enchantments, but provide a much smaller bonus to damage reduction (+3% per piece compared to +8% in vanilla).
• 🛡️ Fire Protection - changed burn time decrease to -10% + 5% * level, stacking multiplicatively with other pieces instead of additively.
• 🛡️ Blast Protection - reduced explosion knockback resistance to 5% per level.

This means that each specialized Protection enchantment can provide an extra 48% damage reduction against a given damage type.

• 🍃 Feather Falling - reworked to reduce taken fall damage by 5% * (level + 1) and increase safe fall distance by 1 + level * 2 blocks.
• 🔨 Unbreaking - slighlty nerfed Ubreaking on tools and buffed the effect on armor. Unbreaking now also scales to level V.

• 🔨 Mending - no longer a treasure enchantment, can be found in Enchanting Table. Has IV max levels, with level IV being the same as Mending in Vanilla. It's also a lot easier to get in the Enchanting Table than other enchantments, only requiring a minimum level of 5. However, it's rarity is rather low when there are a lot of enchantments to pick from and higher levels of Mending are far less common compared to other enchantments.
• 🏹 Power - can be applied to Crossbows. Reduced extra damage

I can't say the exact values due to how Arrow damage is calculated, but during my test, Power V arrow damage was reduced from 20 in vanilla to ~13.

• 🏹 Multishot - now a treasure enchantment and can be applied to Bows. Arrows are shot in a little bit of a spread rather than at strictly pre-defined angles.
• 🏹 Piercing - can be applied to Bows.
• 🏹 Flame - can be applied to Crossbows.
• 🏹 Punch - can be applied to Crossbows. Reduced knockback by 33%.
• 🏹 Infinity - now stacks with Mending, has III levels in total and conserves all types of Arrows. Now has a 12% * (level + 1) chance to save ammunition rather than always doing so.
• 🏹 Quick Charge - reduced efficiency from 25% * level to 10% * (level + 1)
• 🔥 Fire Aspect - now has IV levels in total, each level increases burn duration by 2 seconds.
• 🎣 Lure, Luck of The Sea - both enchaments have an extra level (new max is IV) and are easier to get from a lower-level Enchanting Table, but at the same time it is harder to get them in their higher levels.
• 🔱 Impaling - reworked to apply against any mob that is wet (AKA standing in water or rain), reduced damage increase from 2.5 * level to +10% * (lvl + 1).
• 🔱 Loyalty - Tridents return 25% faster.
• 🔱 Riptide - higher levels of Riptide are less common in the Enchanting Table.
• ⛏️ Silk Touch - reduced minimum level requried for it to appear in the Enchanting Table.
• 🌹 Thorns - reworked to scale better with levels.

• 💦 Depth Strider - reduced efficiency from 33.4% * level to 20% * level and now has IV total levels instead of III.
• 🍀 Looting - now works on Tridents, Axes and Maces.
• ⚡ Channeling - can be applied to Maces, creating lightning bolts on smash attacks during a thunder. Also provides immunity to electric damage while held.
• 💨 Breach - can be applied to Axes. Reduced efficiency, from 15% * level armor penetration to 7.5% * (level + 1) Keep in mind that it is still mutually exclusive with ANY damage-increasing enchantments.
• 💨 Density - reduced max level from V to III.
• 💨 Wind Burst - reduced efficiency on all levels and level scaling.

General:

• 🍀 Lucky [TREASURE] - increases player's luck while held. Only appliable to tools, ranged and melee weapons.
• 🐶 Familiarity - prevents hurting tamed animals (Cats, Dogs, etc.). Only appliable to ranged and melee weapons.
• ⛓ Soulbind - saves the item on death and returns it to player after respawning. Can be applied to pretty much anything. Incompatible with Curse of Vanishing.

Curses:

• 🔥 Curse of Anti-Entropy [Armor] - sets the attacker on fire, but applies strong slowness to the wearer.
• 🥌 Curse of Bulk [Armor] - increases the amount of provided armor points by 1, but decreases movement speed by 15%.
• 🥌 Curse of Enlargement [Tools & Melee weapons] - increases reach by 1.5, but reduces attack speed and mining speed by 40%.
• 🥱 Curse of Exhaustion [Tools] - reduces mining speed by 25%.
• 🥛 Curse of Fragility - 33% chance for an item to take double durability damage on use.
• 💥 Curse of Recklessness [Boots] - increases fall damage by 40%.

Weapon enchantments:

• ⚔️ Illager's Bane [IV] - increases damage against all Illagers by +10% * (level + 1). Stacks with Sharpness and other specialized damage enchantments.
• ⚔️ Swift Strike [III] - increases attack speed by 5% + 4% * (level - 1). Incompatible with Sharpness.
• 🔱 Flow [III] [Trident] - increases movement speed in water while held by 10% + 20% * level.
• 🔱 Warp [Trident] [TREASURE] - teleports its owner to hit blocks. Incompatible with Loyalty as it has built-in Loyalty III.
• 💨 Zephyr [III] [Mace] - killing a mob with a smash attack has a 33.4% * level chance to give 1 Wind Charge.
• 💨 Failsafe [Mace] - reduces fall damage by 33% while held.
• 🏹 Sharpshooter [Bows & Crossbows] [TREASURE] - shot Arrows ignore gravity and travel in a straight line.
• 🏹 Endless Quiver [Bows & Crossbows] [TREASURE] - stronger variant of Infinity which ALWAYS saves shot arrows. Incompatible with Infinity itself.
• 🍄 Venomous [IV] [Melee Weapons] - inflicts Poison on hit, increasing in potency with levels. Incompatible with Fire Aspect and Life Steal.
• 💗 Life Steal [II] [Melee Weapons] - slowly steals life from hit mobs (4:5 heal to damage ratio). Incompatible with Fire Aspect and Venomous.

Tool enchantments:

• ⛏️ Reach [III] - increases tool reach by 1 block and then by 0.5 for every consecutive level.

Armor enchantments:

• 🛡️ Magic Protection [IV] - adds 3% damage reduction per level against magic-type damage. Stacks with all Protection variants.
• 💨 Swiftfooted [IV] [Boots] - increases movement speed by 5% + 2% * (level - 1)
• 🔥 Magma Walker [Boots] [TREASURE] - temporarily turns Lava beneath your feet into Obsidian.
• 🍃 Scholar [IV] - increases dropped EXP by 10% + 5% * (level - 1). Stacks additively.
• 🧗‍♂️ Grip [III] [Boots] - increases knockback resistance by 15% + 10% * (level - 1).
• 🦘 Spring [IV] [Boots] - increases jump height and safe fall distance. Incompatible with Feather Falling.
• 🚶‍♀️ Step [Boots] [TREASURE] - increases step height by 1, allowing for auto-stepping blocks without having to jump.