Rarity Hub
Rarest Blook in Blooket 2026 — Complete Rarity Ranking
The rarest Blook is a Chroma at 0.02% drop rate, but the real story includes rotated-out event Blooks that are now functionally unobtainable.
Published: May 25, 2026
Updated: May 25, 2026
Source notes
The rarest standard-pull Blook is a Chroma at 0.02% drop rate. Some rotated-out event Blooks are now functionally unobtainable and sit above Chromas in true rarity, but they are not indexed here because they cannot be pulled from any current pack.
The rarest Blook in Blooket (short answer)
The rarest pullable Blook is a Chroma, and Chromas drop at roughly 0.02% per pull. That works out to about 1 in 5,000 pack openings for a specific Chroma at the 90% confidence threshold. We currently index 20 Chroma entries across 10 packs.
Several Chromas, including the rainbow Astronaut and Megalodon, are the flagship trophies of the entire game. They are the single hardest standard pulls a Blooket player can chase.
Full rarity ranking — from common to rarest
- Common — the floor of every pack, expected on almost every pull
- Uncommon — frequent but already collectible
- Rare — meaningful pulls, often the first “wow” moment
- Epic — the achievable luxury tier, around 1% per pull
- Legendary — 16 indexed entries across 15 packs, drops at roughly 0.05% per pull
- Chroma — 20 indexed entries, drops at roughly 0.02% per pull (the rarest standard pull)
See the Chroma hub and Legendary hub for the full tables with drop rates per Blook.
All indexed Chroma Blooks (the rarest tier)
| Blook | Pack | Drop rate | Sell value | Estimated tokens |
|---|---|---|---|---|
| Chilly Chameleon | Blizzard Pack | 0.02% | 300 tokens | 125,000 tokens |
| Ice Crab | Ice Monster Pack | 0.02% | 300 tokens | 125,000 tokens |
| Rainbow Panda | Safari Pack | 0.02% | 300 tokens | 100,000 tokens |
| Super Glider | Spooky Pack | 0.02% | 300 tokens | 125,000 tokens |
| Blue Butterfly | Bug Pack | 0.03% | 300 tokens | 83,333 tokens |
| Peppermint Bark | Blizzard Pack | 0.03% | 300 tokens | 83,333 tokens |
| Pirate Pufferfish | Pirate Pack | 0.03% | 300 tokens | 83,333 tokens |
| Teal Platypus | Outback Pack | 0.03% | 300 tokens | 83,333 tokens |
| Half a Sandwich | Lunch Pack | 0.04% | 300 tokens | 62,500 tokens |
| Skeleton Fish | Spooky Pack | 0.04% | 300 tokens | 62,500 tokens |
| Black Astronaut | Space Pack | 0.05% | 300 tokens | 40,000 tokens |
| Brown Astronaut | Space Pack | 0.05% | 300 tokens | 40,000 tokens |
| Frozen Fossil | Ice Monster Pack | 0.05% | 300 tokens | 50,000 tokens |
| Goldfinch | Autumn Pack | 0.05% | 300 tokens | 50,000 tokens |
| Green Astronaut | Space Pack | 0.05% | 300 tokens | 40,000 tokens |
| Orange Astronaut | Space Pack | 0.05% | 300 tokens | 40,000 tokens |
| Pink Astronaut | Space Pack | 0.05% | 300 tokens | 40,000 tokens |
| Red Astronaut | Space Pack | 0.05% | 300 tokens | 40,000 tokens |
| Yellow Astronaut | Space Pack | 0.05% | 300 tokens | 40,000 tokens |
| Ice Slime | Ice Monster Pack | 0.08% | 300 tokens | 31,250 tokens |
Why "rarest" is more complicated than one number
Drop rate is only half the story. Some Blooks that look common on paper are functionally rarer than Chromas because their pack rotated out and is no longer available for purchase. Event Blooks from limited-time seasonal packs fall into this category — they are not in the standard pull pool at all, so their current acquisition rate is effectively zero.
For that reason, this site separates “rarest standard pull” (Chromas) from “rarest in absolute terms” (rotated event Blooks). The calculator only models live, pullable inventory.
What this means for your token budget
A 0.02% Chroma drop rate means you need to plan in the thousands of pulls, not the dozens. To reach a 90% probability of pulling one specific Chroma, you need roughly 11,500 attempts, which translates to about 287,500 tokensat a 25-token pack. That is multiple months of capped farming.
Run the exact math for your target in the chase calculator, compare pack efficiency in the best Chroma pack guide, and read the cumulative probability guidebefore you commit a single token to a Chroma chase.