If you have spent enough time collecting Blooks in Blooket, you have probably wondered the same thing as thousands of other players: what is the rarest Blook in Blooket?
The answer is not as simple as looking for the Blook with the lowest pack drop rate.
Some Blooks are rare because only a tiny number of players have ever received them. Others are difficult to obtain because they have extremely low drop rates. Some are tied to special events, while others are no longer obtainable at all.
That means there are several different ways to define the rarest Blook in Blooket.
In this guide, we will look at the rarest Blooks overall, the rarest Mystical Blooks, the hardest Legendary Blooks to obtain, the rarest pack-openable Blooks, and the Blooks that collectors consider the most valuable.
What Is the Rarest Blook in Blooket?
If rarity is measured by how few legitimate copies exist, Tim the Alien is generally considered the rarest Blook in Blooket.
Tim the Alien belongs to the Mystical rarity tier and was awarded as a special event prize rather than being something players could simply purchase from a normal pack.
Only a tiny number of players received it through its original event, which makes it fundamentally different from a Legendary or Chroma that can be obtained by repeatedly opening packs.
This distinction is important.
A Blook with a 0.01% pack drop rate can technically be obtained by many players if enough packs are opened. A special-event Blook with only a handful of legitimate owners can be much rarer in terms of actual ownership.
So when players ask “what is the rarest Blook in Blooket?”, Tim the Alien is one of the strongest answers when rarity is based on scarcity and ownership.
Why Is Tim the Alien So Rare?
Tim the Alien is a Mystical Blook, which places it above the normal pack-based rarity tiers.
Unlike a Common, Rare, Epic, Legendary, or Chroma, it was not designed as an ordinary token purchase. Its availability was connected to a special Blooket event.
That makes it almost impossible for an ordinary collector to obtain today.
The important difference is that Tim the Alien is not simply rare because it has a tiny percentage.
It is rare because access to it was extremely limited.
This is why the phrase rarest Blooket can be misleading when comparing different Blooks. A low percentage and a low number of owners are two different measurements of rarity.
What Is the Highest Rarity in Blooket?
Mystical is the highest rarity tier in Blooket.
The rarity system includes several tiers, but Mystical Blooks sit at the top of the hierarchy.
A simplified way to understand the upper end of the system is:
- Rare
- Epic
- Legendary
- Chroma
- Mystical
However, rarity tiers do not always tell you how difficult a particular Blook is to obtain.
For example, a Legendary Blook may be obtainable from a pack with a known drop rate, while a Mystical Blook may have been awarded only to winners of a limited event.
This is why a lower-tier Blook can sometimes be harder for a normal player to obtain than a higher-tier Blook.
What Are Mystical Blooks in Blooket?
Mystical Blooket is a term players commonly use when searching for the rarest Blooks in the game.
Mystical Blooks are special collectibles associated with Blooket events and other limited circumstances. They are not simply another category that you can repeatedly purchase from a standard pack.
This makes Mysticals particularly interesting to collectors.
Examples of Mystical Blooks include:
- Tim the Alien
- Spooky Ghost
- Phantom King
- Rainbow Astronaut
- Hamsta Claus
The exact availability of individual Mystical Blooks can change over time because event rewards are not necessarily permanent.
For collectors, the most important question is therefore not just “What rarity is this Blook?” but also:
How was it obtained, how many players received it, and can it still be obtained legitimately?
How Do You Get Mystical Blooks?
One of the biggest misconceptions about Mystical Blooks is that you can simply save enough tokens and eventually open one.
That is generally not how Mystical Blooks work.
You cannot normally get Mystical Blooks by opening ordinary Blooket packs.
Mystical Blooks have historically been connected to special events, competitions, or other limited forms of distribution.
This means having 10,000, 100,000, or even more tokens does not automatically give you a way to purchase a Mystical.
That is also why Mystical Blooks should not be compared directly with ordinary pack odds.
If your goal is to collect every Blook that can be obtained through token spending, you should focus on the pack-based rarity tiers instead.
If your goal is to own the rarest Blooks in the game, Mysticals are a completely different category.

The Rarest Legendary Blook in Blooket
When players ask about the rarest legendary Blook in Blooket, the answer is different from the rarest Blook overall.
A Legendary is still a pack-based rarity, so the best way to compare Legendary Blooks is usually by their drop rates.
Players widely regard Megalodon as one of the rarest Legendary Blooks because the Aquatic Pack drops it at an extremely low rate.
At a reported 0.2% drop rate, the Megalodon is substantially harder to pull than a Legendary with a 1% chance.
That does not mean you are guaranteed to get one after 500 openings.
A 0.2% probability is an individual-opening chance. Each opening remains an independent event.
This is an important distinction when calculating Blooket legendary odds.
How Hard Is It to Get a Legendary Blook?
A Legendary Blook can be difficult to obtain even when its drop rate looks reasonably high.
For example, imagine a Legendary has a 1% chance per pack.
That does not mean you will definitely receive it after exactly 100 openings.
Probability does not work like a countdown.
You could receive the Blook on your first opening, or you could open hundreds of packs without getting it.
The useful calculation is your cumulative probability.
For a drop rate of 1%, the chance of getting at least one copy after 40 independent openings is:
1 − (0.99)^40 ≈ 33%
After 100 openings:
1 − (0.99)^100 ≈ 63%
Even after 100 openings, there is still a chance that you will not receive the Blook.
This is where a Blooket calculator becomes useful. Instead of looking at a single drop-rate percentage, you can calculate how your number of available openings changes your overall chance.
What Is the Hardest Blook to Get in Blooket?
There is no single answer unless we first define what “hardest” means.
There are at least three useful ways to measure difficulty:
1. Hardest Blook by ownership
Players consider a special event Blook with only a tiny number of legitimate owners the hardest Blook to obtain.
This is where Mystical Blooks such as Tim the Alien become important.
2. Hardest Blook by pack odds
For token-based collectors, the hardest Blooks are usually those with the lowest pack drop rates.
These can require a huge number of openings before your cumulative probability becomes meaningful.
3. Hardest Blook by availability
A Blook that is no longer obtainable can be harder to get than one with a very low drop rate.
Even if the probability of a pack Blook is only 0.01%, you can still theoretically obtain it while the relevant pack is available.
An unobtainable event Blook does not give ordinary players that option.
So the hardest Blook to get in Blooket depends on whether you care about ownership scarcity, probability, or current availability.
Top 10 Rarest Blooks in Blooket
There is no universally perfect ranking because Blook rarity can be measured in different ways.
However, a useful collector-oriented list would focus on Mysticals, extremely low-probability Blooks, and limited or retired collectibles.
1. Tim the Alien
Tim the Alien is one of the strongest candidates for the title of rarest Blook overall because of its extremely limited event distribution.
2. Other Limited Mystical Blooks
Special events make other Mystical Blooks exceptionally difficult to obtain because players must earn them there instead of through ordinary pack openings.
3. Spooky Ghost
Spooky Ghost is another highly collectible Mystical associated with a limited event.
Its limited availability makes it much harder to obtain than ordinary pack Blooks.
4. Phantom King
“A special event connects Phantom King to the Mystical Blook category, placing it in a completely different rarity tier from normal pack collectibles.
5. Rainbow Astronaut
Rainbow Astronaut is notable because it belongs to the Mystical tier and was associated with a limited event rather than ordinary pack opening.
6. Hamsta Claus
Hamsta Claus is another special Mystical Blook connected to an event reward.
Its availability is very different from that of ordinary Legendary or Chroma Blooks.
7. Megalodon
Megalodon stands out among Legendary Blooks because of its exceptionally low reported drop rate from the Aquatic Pack.
8. Extremely Low-Drop Chroma Blooks
Some Chroma Blooks have extraordinarily small pack-opening probabilities.
Players may pursue these Blooks through token spending, making them some of the rarest collectibles.
9. Limited Seasonal Blooks
Seasonal Blooks can become particularly difficult to obtain once their associated packs or events are no longer available.
10. Retired or Event-Exclusive Blooks
A Blook does not necessarily need to have the highest rarity tier to become extremely difficult to find.
Limited distribution alone can make an otherwise ordinary-looking Blook highly desirable to collectors.
What Are the Rarest Chroma Blooks?
Chroma Blooks occupy an interesting position in the Blooket rarity system.
Ordinary pack Blooks appear far more common, but some Chromas enter a different category because players can still obtain them through pack openings.
This creates an important distinction:
Mystical = extremely limited special-tier Blooks
Chroma = extremely rare Blooks that can include very low pack probabilities
For players who only care about what they can obtain with tokens, Chroma Blooks are therefore much more relevant than Mysticals.
A Chroma with a 0.01% drop rate is extraordinarily difficult to pull.
But unlike a permanently unavailable event reward, it still has a mathematical path to acquisition while the relevant pack is available.
What Is the Rarest Blook You Can Get From a Pack?
If the question is specifically:
“What is the rarest Blook I can get by opening a Blooket pack?”
then Mystical Blooks should be excluded.
Instead, the answer should be based on the lowest current pack drop rate.
This is an important distinction because many articles simply call a Mystical the rarest Blook and stop there.
For someone who has thousands of tokens saved, that answer is not very useful.
A better approach is to separate:
- Rarest Blook overall
- Rarest Mystical
- Rarest Legendary
- Rarest Chroma
- Rarest pack-openable Blook
- Rarest currently obtainable Blook
That gives collectors a much clearer picture.
What Is the Easiest Legendary to Get in Blooket?
The easiest Legendary depends on the pack and its current drop rate.
A Legendary with a 1% chance is considerably easier to obtain than one with a 0.2% chance when all other conditions are equal.
However, “easiest” does not mean guaranteed.
If you have a specific Legendary in mind, the better approach is to calculate the number of openings required to reach your desired probability.
For example, you might decide that a 50% cumulative chance is your minimum target.
At a 1% drop rate, reaching approximately that level takes around 69 independent openings.
That gives you a much more useful target than simply saying that the Blook has a 1% drop rate.
What Is the Best Blook in Blooket?
The question “what is the best Blook in Blooket?” is different from asking which Blook is the rarest.
Rarity does not automatically make a Blook the best.
Some players care about:
- Rarity
- Appearance
- Animation
- Event history
- Collector value
- Difficulty of obtaining it
- Personal preference
A Common Blook that you really like can be more valuable to you than a Legendary you never use.
For collectors, however, Mystical and extremely rare Chroma Blooks naturally attract more attention because of their scarcity.
Unique Blooks in Blooket
Some Blooks stand out because they are visually unusual or have special histories.
This is where searches such as unique Blooks in Blooket and unique Blooket often overlap with searches about rarity.
But unique does not necessarily mean rare.
A Blook can have a distinctive design while still being relatively easy to obtain.
Likewise, a Blook can be extremely rare simply because of its distribution history even if its design is not dramatically different from another Blook.
That is why collectors should separate uniqueness from rarity.
Rarity vs. Drop Rate: What Is the Difference?
This is probably the most important concept for anyone collecting Blooks.
Rarity describes how scarce or exclusive a Blook is.
Drop rate describes the probability of receiving a Blook from a particular opening.
They are related, but they are not the same thing.
Imagine two Blooks:
Blook A has a 0.01% pack drop rate.
Event organizers awarded Blook B to only two winners.
Blook A is extraordinarily difficult to pull from a pack.
Blook B may be much rarer in terms of actual ownership.
Neither statement contradicts the other.
This is why questions such as “what is the rarest Blooket in Blooket?” can have different answers depending on the definition being used.
Can You Use Tokens to Get the Rarest Blook?
Not necessarily.
If your target is a pack-based Chroma or Legendary, tokens are directly relevant because you need tokens to purchase the pack.
Even if players save more tokens, they cannot necessarily obtain a Mystical Blook awarded through a special event.
This is one reason it is useful to identify the Blook’s acquisition method before spending anything.
If your target is obtainable through a pack, use the drop rate and your token balance to calculate your expected number of openings and cumulative probability.
If it is an event-exclusive Blook, token spending may not be relevant at all.
How to Find Out How Rare Your Blook Is
If you already own a Blook and want to understand how rare it is, check four things:
- Rarity tier — Is it Rare, Epic, Legendary, Chroma, or Mystical?
- Acquisition method — Did it come from a pack, event, reward, or another source?
- Drop rate — If it is pack-based, how low is the probability?
- Availability — Can players still obtain it today?
These four factors give you a much better understanding of rarity than the rarity label alone.
Rarest Blook in Blooket: Final Answer
So, what is the rarest Blook in Blooket?
If we are talking about overall scarcity and extremely limited ownership, Tim the Alien is one of the strongest answers.
If we are talking specifically about the rarest Legendary, the answer is different.
If we are talking about the rarest Blook obtainable through packs, we need to compare current pack drop rates.
And if we are talking about the hardest Blook for an ordinary player to obtain today, availability becomes just as important as probability.
That is why the best way to understand Blooket rarity is to look beyond the word “rare.”
A Blook becomes rare when it drops at an incredibly low rate, when only a few players receive it, when a limited event ties it to exclusivity, or when players can no longer obtain it.
For collectors, that distinction makes the hunt much more interesting.
Players chasing a Legendary or Chroma obtainable from packs check their token balance and calculate their opening odds before spending. A probability calculator can show how many packs you can afford and how your cumulative chance changes as you increase the number of openings.
The rarest Blook is not always the one with the smallest percentage.
Sometimes, the rarest Blook is simply the one that almost nobody has.
