Blessed Upgrade Scroll is one of the most important—and frequently misunderstood—items in Knight Online. Usually shortened to BUS, the scroll is used at the Magic Anvil to improve weapons and armor. However, despite the reassuring word “blessed,” it doesn’t make every upgrade safe. Your equipment may still disappear when an upgrade fails.
That distinction matters. Confusing a regular Blessed Upgrade Scroll with a guaranteed Blessed Item Upgrade Scroll can turn an exciting upgrade attempt into a painfully expensive mistake.
What Is a Blessed Upgrade Scroll in Knight Online?
The Blessed Upgrade Scroll is an enhancement material used to raise the upgrade level of eligible equipment in Knight Online. Depending on the item’s class, it may help upgrade weapons or armor from one level to the next, such as +3 to +4 or +6 to +7.
The process takes place at the Magic Anvil in Moradon. Players place the equipment, the appropriate scroll and, when applicable, an additional enhancement item into the Anvil. The attempt either succeeds and raises the item’s level or fails, potentially causing the item to disappear.
BUS is especially associated with high-class and unique equipment. Community documentation generally recommends it for high-class upgrades after the earliest stages, while unique items may first require a Blessed Elemental Scroll before normal upgrade attempts can continue.
In simple terms, BUS is an upgrade tool—not an insurance policy.
A Blessed Upgrade Scroll Does Not Guarantee Safety
One of the biggest myths surrounding the Blessed Upgrade Scroll is that it protects equipment when an upgrade fails. That may be true for similarly named items in other MMORPGs, but it isn’t a reliable description of the standard Knight Online BUS.
At the Magic Anvil, an unsuccessful attempt can still burn or destroy the equipment. The scroll improves your ability to upgrade certain item classes, but it doesn’t remove the risk attached to higher enhancement levels. Knight Online upgrade references specifically describe the outcome as either improving the item or making it disappear.
This is why players should be cautious with recent generic guides claiming that a BUS always prevents destruction. Some of those articles discuss a fictional, game-neutral scroll rather than Knight Online’s actual item mechanics.
The practical rule is straightforward:
Never place an item into the Anvil unless you’re financially and emotionally prepared to lose it.
That sounds dramatic, perhaps, but experienced Knight Online players know exactly why the Anvil has such a reputation.
Blessed Upgrade Scroll vs Blessed Item Upgrade Scroll
These two names look almost identical, yet they can describe very different items.
Blessed Upgrade Scroll
The ordinary Blessed Upgrade Scroll, commonly called BUS, is used in regular Anvil enhancement attempts. It can be required or preferred for middle-class, high-class and unique gear, depending on the equipment’s level.
It does not normally guarantee a successful high-level upgrade. Once an item moves beyond the safer early enhancement stages, failure becomes a real possibility.
Blessed Item Upgrade Scroll
The Blessed Item Upgrade Scroll is a special and much rarer item. Certain versions have been officially described as allowing a +6 item to reach +7 with a 100% success rate. Knight Online’s publisher has listed this item in events and reward systems as a guaranteed +7 upgrade scroll.
Therefore, these terms should not be used interchangeably:
| Item | Typical purpose | Guaranteed? |
|---|---|---|
| Blessed Upgrade Scroll | Normal equipment enhancement | No |
| Blessed Item Upgrade Scroll +7 | Special +6 to +7 upgrade | Yes, when stated in its description |
| Blessed Elemental Scroll | Unlocking or adding elemental properties | Different function |
| Trina’s Piece | Improving the chance of an eligible upgrade | Not a guarantee |
Always read the complete item description before using anything valuable. The name alone is not enough.
How to Use a Blessed Upgrade Scroll
Using a Blessed Upgrade Scroll is simple mechanically, but the decision behind the click deserves some thought.
1. Check the equipment class
Determine whether the item is low class, middle class, high class or unique. Different item classes accept different scrolls, and using an expensive BUS on equipment that can be upgraded more cheaply may waste Noah.
2. Confirm the current upgrade level
Look carefully at whether the item is +1, +3, +6 or higher. Risk generally becomes more serious as the enhancement level rises. Community guides commonly treat early upgrades up to around +3 as safer, while later attempts carry increasingly severe failure risk.
3. Visit the Magic Anvil
The upgrade system is accessed through the Magic Anvil in Moradon. Place the equipment and Blessed Upgrade Scroll into the correct Anvil slots. Some attempts may also accept a Trina’s Piece or another relevant material.
4. Review every item before confirming
Anvil mistakes happen fast. Make sure you haven’t selected your primary weapon, an expensive backup item or the wrong scroll by accident.
5. Accept the possible outcome
Once the attempt begins, the result is determined by the game’s upgrade system. Clicking at a particular second, changing Anvil slots or sacrificing cheap equipment beforehand hasn’t been proven to guarantee success.
Blessed Upgrade Scroll Success Rates Explained
Players understandably search for exact BUS success rates. Unfortunately, there isn’t one trustworthy percentage table that should be treated as permanent across every Knight Online version, server and patch.
Community-generated tables differ considerably. One widely circulated Steam discussion estimates the following rates for high-class equipment:
| Upgrade attempt | Community-estimated BUS rate |
|---|---|
| +1 to +2 | 100% |
| +2 to +3 | 100% |
| +3 to +4 | 90% |
| +4 to +5 | 85% |
| +5 to +6 | 60% |
| +6 to +7 | 30% |
| +7 to +8 | 10% |
| +8 to +9 | 5% |
| +9 to +10 | 1% |
The same table suggests that a Trina’s Piece can improve some attempts, but these figures come from player discussions rather than a current official rate sheet.
Another community-maintained Knight Online guide provides noticeably lower estimates at certain levels, including roughly 25% for +6 to +7 and 5% for +7 to +8. It explicitly warns that its figures are approximate and based on player statistics.
That disagreement is important. Responsible advice shouldn’t present unofficial rates as guaranteed facts.
There is another probability trap worth understanding. Suppose an upgrade has a hypothetical 10% chance. Ten attempts do not guarantee one success. Under a simple independent-probability model, ten 10% attempts provide only about a 65% chance of succeeding at least once. Randomness can produce several failures in a row—and it often feels much worse when each failure destroys expensive gear.
When Should You Use a Blessed Upgrade Scroll?
BUS makes the most sense when it is the correct scroll for the equipment class and the potential upgrade creates enough value to justify the risk.
Before attempting an upgrade, compare:
- The market value of the current item
- The price of BUS and other materials
- The market price of the successfully upgraded item
- The cost of replacing the equipment after failure
- Whether the upgraded stats meaningfully improve your build
- Whether buying the finished item is cheaper than gambling at the Anvil
Here’s a realistic example. Imagine a +6 weapon is worth 20 million Noah, while the +7 version sells for 35 million. If the scroll, Anvil fee and other materials add another 3 million, you’re risking approximately 23 million to create 12 million in additional market value.
Even before knowing the exact success rate, that deal looks questionable. Buying the +7 weapon directly may be the smarter move.
On the other hand, upgrading can make sense when the finished item is scarce, the price difference is large or you already obtained the base item cheaply. The key is evaluating the full replacement cost rather than looking only at the price of the scroll.
Where Can You Get a Blessed Upgrade Scroll?
BUS availability can depend on the server economy and current events. Historically, scrolls have been obtained through NPC purchases, monster drops and trades with other players. The Knight Online community guide also identifies Charon near the Magic Anvil, an Abyss NPC, player merchants and some higher-level creatures as possible sources.
Older player discussions have mentioned monsters such as Apostle of Piercing Cold, Hob Goblin, Treant and Ancient as possible BUS drop sources. However, drop tables and farming efficiency may change, so these reports shouldn’t be treated as permanent guarantees.
For most players, the practical options are:
- Check Charon and relevant NPC shops.
- Compare prices in the player market.
- Review current event rewards.
- Farm suitable monsters only after confirming the present server drop table.
- Avoid suspicious third-party sellers or transactions that violate game rules.
Sometimes buying BUS from another player is more efficient than farming it. Time has value too, even in Moradon.
Common Blessed Upgrade Scroll Myths
“Burning cheap items first improves my next attempt”
Players often sacrifice several inexpensive items and then immediately upgrade their valuable equipment. It’s a famous Anvil ritual, but community documentation states that item-burning patterns don’t affect the upgrade result.
“A certain Anvil slot has a better success rate”
There is no dependable evidence that one box position is luckier than another. Upgrade data is processed by the game system, not improved by placing the item in a favourite visual slot.
“A 30% rate means one of every three attempts will succeed”
Not necessarily. A percentage describes the chance attached to each qualifying attempt. It doesn’t promise that results will distribute evenly across a small number of upgrades.
“Blessed means the item cannot burn”
This is the most expensive misunderstanding. Standard BUS attempts can fail. Only rely on guaranteed protection or success when the specific item description explicitly states it.
Frequently Asked Questions
Is the Blessed Upgrade Scroll safe?
No. A standard Blessed Upgrade Scroll doesn’t make every Knight Online upgrade safe. At higher levels, an unsuccessful Anvil attempt may destroy the equipment.
What does BUS mean in Knight Online?
BUS is the common abbreviation for Blessed Upgrade Scroll.
Can BUS upgrade an item to +7?
Yes, it may be used for eligible +6 to +7 attempts, but the standard BUS does not guarantee success. A special Blessed Item Upgrade Scroll marked for a guaranteed +7 result is a different item.
Does Trina’s Piece guarantee an upgrade?
No. Trina’s Piece can improve the success chance of eligible attempts, but it normally doesn’t turn a risky high-level upgrade into a guaranteed one. Community estimates show improved—but still imperfect—rates.
Can a Blessed Upgrade Scroll be used on unique items?
Unique items generally need the appropriate initial preparation, often involving a Blessed Elemental Scroll, before further enhancement with BUS. Check the exact item and server rules before proceeding.
Is buying upgraded gear better than using BUS?
Often, yes. Compare the finished item’s market price with the combined value of the base gear, scrolls, fees, enhancement materials and failure risk. Buying the completed item may be cheaper and far less stressful.
Conclusion: Use the Blessed Upgrade Scroll With a Plan
The Blessed Upgrade Scroll is an essential part of Knight Online’s equipment progression, but it shouldn’t be confused with a guaranteed protection item. Standard BUS upgrades can fail, high-level equipment can disappear and unofficial success-rate tables may not reflect your current server.
Before visiting the Magic Anvil, verify the equipment class, read every item description and calculate the complete value at risk. Most importantly, understand the difference between a Blessed Upgrade Scroll and a special Blessed Item Upgrade Scroll offering a stated 100% upgrade.
The Anvil will always involve luck. Your preparation, however, doesn’t have to.
Suggested featured-image ALT text: Blessed Upgrade Scroll and Knight Online Magic Anvil equipment upgrade guide
