Sailor Piece
S+ Tier

Primordial Rune

Global Damage Boost

The best damage rune in the game, surpassing Havoc Rune. Primordial Rune is a Secret rune added in the Massive Update (March 25, 2026) exclusively from the Infinite Tower. Provides +84% DMG at base, scaling to +112% DMG at max level (Lv.60). Less than 1% drop rate from Tower floors. A bug preventing it from dropping was fixed at 19:22 March 25.

Updated 2026-03-26

Tier Position

#2 of 11

Location

Infinite Tower (Tower Island) — less than 1% drop rate

Max Level

Lv60

Cost

Free (drop)

At a Glance

Primordial Rune

S+ Tier

Ranked #2 of 11 in Runes

Global Damage Boost

Tier Distribution

S+
2
18%
S
3
27%
A
1
9%
B
3
27%
C
1
9%
D
1
9%

Primordial Rune is in S+ Tier

Bonus & Scaling

Bonus TypeGlobal Damage Boost
Scaling+84% DMG (base Lv.1) → +112% DMG (max Lv.60)
LocationInfinite Tower (Tower Island) — less than 1% drop rate
Cost (Fragments)Free (drop)

Rune Leveling

Max Level
Lv60
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.
NewSecretMassive-UpdateInfinite-TowerRareDamageTop-Tier

Synergy Recommendations

Best Fruits to Pair

Dragon Fruit
PvP synergy
S+
Fiend Fruit
PvP synergy
S+
Kitsune Fruit
PvP synergy
S+
Light Fruit
PvP synergy
S

Best Races to Pair

SwordBlessed
PvP race
S+
Galevorn
PvP race
S+
Sunborn
PvP race
S+
Servant
PvP race
S+

Recommended Builds

Warlord + Strongest Shinobi
Endgame
SwordBlessed + Gilgamesh
PvP
Galevorn + Anos
Endgame
Leviathan / Servant
Endgame