Primordial Rune
+112% DMG max (Lv.60) — the highest damage bonus rune in Sailor Piece and the best in the S+ tier. Primordial Rune is a Secret rune added in the Massive Update (March 25, 2026), dropped exclusively from Infinite Tower floors at less than 1% chance (Level 8,500+ required). Surpasses Havoc Rune as the top DPS rune. A drop bug was fixed at launch (19:22 March 25). Source: Beebom runes guide (2026-03-26).
Bonus & Scaling
| Property | Value |
|---|---|
| Bonus Type | Global Damage Boost |
| Scaling | +84% DMG (base Lv.1) → +112% DMG (max Lv.60). Source: Beebom runes guide (2026-03-26). |
| Location | Infinite Tower (Tower Island) — less than 1% drop rate from Tower floors. Level 8,500+ required. |
| Cost (Fragments) | Free (drop) |
+84% DMG (base Lv.1) → +112% DMG (max Lv.60). Source: Beebom runes guide (2026-03-26).
How to Get Primordial Rune
Infinite Tower (Tower Island) — less than 1% drop rate from Tower floors. Level 8,500+ required.
Rune Dungeon
Access the Rune Dungeon using a Dungeon Key. Clear all 15 waves for a chance at rune drops.
Drop Rate
Rare drop from the Rune Dungeon. Higher-tier runes have lower drop rates.
Rune Leveling
Max Level
Lv50
Duplicates Needed
502
Equip Limit
1 Rune
Runes are leveled by feeding duplicate copies. Each level increases the rune's bonus. Only one rune can be equipped at a time, so choose wisely.
Usage Tips
- Damage runes are the most versatile choice, boosting all damage output universally.
- Pairs well with high-DPS fruits and swords for maximum burst damage.
- Only one rune can be equipped at a time. Prioritize leveling your primary rune to Lv50 before investing in others.
Used in Builds
Primordial Rune synergizes with 4 builds.
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At a Glance
Quick Overview
Primordial Rune
S+ TierBonus
Global Damage Boost
Location
Infinite Tower (Towe
+112% DMG max (Lv.60) — the highest damage bonus rune in Sailor Piece and the be...
Tier Position
Ranked #2 of 11 in Runes
Primordial Rune is in S+ Tier
Patch History
- Anti-Magic UpdateLatest
- [April 26 PITY] Infinite Tower deeper-floor pity — 7,500 floors guarantees a Brilliant rune, 10,000 floors guarantees a Primordial rune. Source: Beebom patch notes.
- Massive Update
- Fixed players not being able to obtain Primordial Rune from Infinite Tower (criss, Hotfix 19:22, March 25).
Synergy Recommendations
Best Pairings & Synergies
Best Fruits to Pair
Sea 2 power route
Primordial Rune is a high-value damage target
Primordial Rune searches need a clear answer on where it fits: it is a damage-focused endgame rune that matters most after your Sea 2 route and boss farming build are stable.
- Prioritize build stability before chasing low-probability rune drops.
- Use luck buffs and farming routes when available; do not treat it as a quick early-game upgrade.
- Compare with Relics and Bloodlines because Sea 2 power comes from several stacked systems.
Related Content
All Runes Database
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View Primordial Rune on Runes Tier List
See where Primordial Rune ranks among all runes.
Best Builds with Primordial Rune
Find builds that synergize with Primordial Rune.
Active Codes
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Build Optimizer
Find the optimal stat allocation for your build.
Accessories Wiki
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Primordial Rune — Info
- Tier
- S+
- Bonus Type
- Global Damage Boost
- Scaling
- +84% DMG (base Lv.1) → +112% DMG (max Lv.60). Source: Beebom runes guide (2026-03-26).
- Location
- Infinite Tower (Tower Island)
- Cost
- Free (drop)
- Max Level
- Lv50
- Last Updated
- 2026-03-26