Oni
How many rolls Oni takes
| Your luck | Expected rolls |
|---|---|
| 1× | 6,666,666 |
| 2× | 3,333,333 |
| 5× | 1,333,333 |
| 10× | 666,667 |
| 100× | 66,667 |
Expected rolls = N ÷ luck. Each roll is independent, so it can take far more or far fewer. Open in the calculator →
Aura facts
Rarity
1/6.67M
Tier
Event
Biome
Blood Rain
Biome-exclusive
Added in
Eon 1-9
Inside Blood Rain the wiki lists: 1 in 6,666,666
Blood Rain appears with Summoned with a Cursed Rune Fragment from Fischl's shop during Graveyard or Pumpkin Moon and lasts 10 minutes. Biome details →
Why it is unobtainable: Limited to the Halloween 2025 event, which has ended
Credited on the wiki to: NoodonoBlox_YT
About Oni
Wearing a demon mask and swinging a spiked bat, the player in Oni looks like a horror-movie slasher. This Halloween 2025 event aura (Eon 1-9, added 18 October 2025) rolled at 1 in 6,666,666 in Blood Rain or Glitched only, so about 6.7 million rolls at 1x luck. The event has ended and it is no longer obtainable. NoodonoBlox_YT is the creator.
The Sol's RNG Wiki describes a colour scheme close to Bloodlust: a blood red sigil on the ground, bright red particles and dark fog. A Japanese torii gate stands behind the player, covered in fog and red debris. The player stretches out the left hand, as in Aegis' second idle animation, with crimson magic circling the Chinese symbol for ghost. The wiki says it draws on Japanese culture and may also reference The Oni, the Dead by Daylight killer Kazan Yamaoka, given the weapon and palette.
There are two number quirks listed in its trivia. Oni shares its rarity with breakthrough Hades, and it is the only event aura whose rarity is a single repeated digit.
Auras with similar odds (Event)
Frequently asked questions
How rare is Oni in Sol's RNG?
The Sol's RNG Wiki lists Oni at 1 in 6,666,666, in the Event tier. With base luck that averages 6,666,666 rolls; with 10× luck, about 666,667.
Can you still get Oni?
No. The wiki marks it as unobtainable: Limited to the Halloween 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.