Stats
level 12000+
location Lawless Island
hp 2,000,000,000
type Spawnable
drops Magic Shard, Shadow Remnant, Atomic Outfit, Eminence Essence, Atomic Omen
spawn Time Summon only
Atomic Boss (Cid)
The Atomic Boss (also known as Cid) is a Spawnable Boss on Lawless Island with 2 Billion HP — one of the hardest bosses in the game. Added in the Massive Update (March 25, 2026), it drops materials for the Atomic fighting style.
Stats
| Stat | Value |
|---|
| Type | Spawnable |
| HP | 2,000,000,000 |
| Level | 12,000+ |
| Location | Lawless Island |
| Spawn | Summon only |
| Tier | S+ |
Spawn Requirements (by difficulty)
| Difficulty | Abyss Sigils |
|---|
| Normal | 1x |
| Medium | 2x |
| Hard | 3x |
| Extreme | 4x |
Drops
| Drop | Rate |
|---|
| Magic Shard | 13.12% |
| Shadow Remnant | 4.28% |
| Atomic Outfit (accessory) | 1.12% |
| Eminence Essence | 1.05% |
| Eminence Incarnate title | 0.7% |
| Atomic Omen | 0.45% |
Pity Mechanic
The Atomic Boss features a pity mechanic where mythical drops have a higher drop rate than legendary drops during pity periods. Abyss Sigils trigger the pity system.
Tips
- Farm Abyss Sigils from Ninja Island content
- 2 Billion HP requires a fully optimized endgame build
- Magic Shard (13.12%) is the most common unique drop
- Atomic Omen (0.45%) is the rarest drop
- Defeating this boss is required for the Atomic fighting style F Move questline
- Higher difficulty levels require more Abyss Sigils but may improve drop rates