Jackfrost
In-game description
“A shard of the Longest Night, given form. It does not hate, nor love Its the The Whisper of the Frost”— Sol's RNG (as quoted on the wiki)
How many rolls Jackfrost takes
| Your luck | Expected rolls |
|---|---|
| 1× | 4,700,000 |
| 2× | 2,350,000 |
| 5× | 940,000 |
| 10× | 470,000 |
| 100× | 47,000 |
Expected rolls = N ÷ luck. Each roll is independent, so it can take far more or far fewer. Open in the calculator →
Aura facts
Rarity
1/4.7M
Tier
Event
Biome
Aurora
Biome-native
Added in
2025 Christmas event
Inside Aurora the wiki lists: 1 in 2,350,000
Aurora appears with Summoned with a Glowing Snow Globe during Snowy, or 1 in 50,000 every second and lasts 5 minutes. Biome details →
Why it is unobtainable: Limited to the Christmas 2025 event, which has ended
Credited on the wiki to: bzrhrg4, kakash_keee
About Jackfrost
Jackfrost holds an icy staff and a grudge against the cold. It is a Christmas 2025 event aura by bzrhrg4 and kakash_keee that rolled at 1 in 4,700,000, or 1 in 2,350,000 in Aurora. In practice that was 4.7 million rolls at 1x luck, 2.35 million with Aurora, and around 235,000 combining Aurora with 10x luck. The event is over, and the wiki lists the aura as unobtainable.
The Sol's RNG Wiki describes a unique standing pose with a light-blue staff, a pale wind that blows from behind the player to the front, snowflakes and little squares climbing from the floor toward the head, and a light-blue storm circling on the ground. A snowflake sits on the torso and the limbs are covered in light snow. The cutscene shows an eight-pronged blue star cut by two black lines that spins faster and grows until a blue glow with black lines reveals the aura.
Its flavor text calls it a shard of the Longest Night that neither hates nor loves, the whisper of the frost. Gingerbread is the sister event piece in Aurora, but with a warmer palette.
Auras with similar odds (Event)
Frequently asked questions
How rare is Jackfrost in Sol's RNG?
The Sol's RNG Wiki lists Jackfrost at 1 in 4,700,000, in the Event tier. With base luck that averages 4,700,000 rolls; with 10× luck, about 470,000.
Can you still get Jackfrost?
No. The wiki marks it as unobtainable: Limited to the Christmas 2025 event, which has ended.
Data taken from the Sol's RNG Wiki (CC BY-SA), organized with AI assistance; nothing here is tested in the game; wiki read on 2026-10-24.