BOTTLE O' ENCHANTING

Every other item on this site's enchanted lineup carries a random roll and a price that moves with it. Bottle o' Enchanting does neither. A Cleric at master always asks the same 3 emeralds, and what you get back never varies, because it is not a piece of gear waiting on an enchantment draw, it is bottled experience straight off his brewing stand.

There is no crafting recipe for it in Java. Outside of buying one from a Cleric, the only other place it turns up is inside a handful of loot chests, which makes trading the one source you can actually plan around rather than stumble into.

One trader, one fixed price. A Cleric asks 3 emeralds for it once he reaches master, and unlike almost everything else in this enchanted family, that number does not move from one Cleric to the next. It is written into the trade file as a flat cost, not rolled.

Bottle o' Enchanting sells for as little as 3 emeralds, from the Cleric at the Master tier, and 2 of the other 4 cost less. The price is fixed rather than rolled, so a second Cleric will quote you exactly the same.

The Cleric at its master tier asks 3 emeralds for a bottle o' enchanting. 8 of the 72 villagers that pay emeralds, emptied out:

3 lava buckets against 78 flint for the same 3 emeralds, 26 times the carrying, and the shortest wait is the Mason at 1.9 real minutes of shelf, gathering not counted.

The offer locks after 12 sales, refilling on the same twice-a-day restock every profession runs on, so one Cleric is good for 24 bottles in a Minecraft day and no more until the next.

It only appears once he has reached master, the last rung on his ladder, so a freshly employed Cleric standing at a brewing stand is nowhere near offering it yet. Every trade below that tier has to be worked through first.

12 bottles and the slot runs out, needing 2 real minutes back at the brewing stand before it opens again. A Minecraft day holds 20 real minutes, room for exactly two of those refills.

Since the price never moves, the payoff for waiting out a full day is easy to name: 24 bottles for 72 emeralds flat, every single time, no gamble on what any of them turned out to be.

The same Cleric buys rabbit foot for emeralds, so a night hunting rabbits can fund a slot's worth of bottles without ever touching your own stockpile.

His brewing stand also carries rotten flesh, redstone dust, gold ingot, lapis lazuli, glowstone and scute. None of those trades share a slot with this one, so clearing them out does not eat into how many bottles you can still buy.

Throw one and it bursts into experience orbs. That is the whole item, and it is the only way the game lets you carry levels around: everything else that gives experience gives it where the mob died or the ore broke, and you have to be standing there.

What that is good for is repairs. An anvil eats levels, and a stack of bottles kept next to it means mending a tool never depends on how the last mining trip went. It is also the safest way to move progress: die with bottles in your inventory and they are still bottles, while levels you were carrying yourself are mostly gone.

Since a villager will sell them for emeralds, and emeralds come out of a farm you already run, this is the point where experience quietly becomes something you can grow.

At 3 emeralds a bottle, the Cleric sells experience you could collect for nothing. A mob spawner turned into a farm is the usual first source of levels: How to Build a Mob Spawner XP Farm in Minecraft. Best Minecraft XP Farms, Fastest Leveling Methods lines up the faster options once you outgrow it.