Twinborn Rune Guide
At a glance
Twinborn Rune is a new system that fuses two enhancement runes of the same series into one, so the result takes only one rune slot.
The fused Twinborn Rune inherits every skill attribute and enchantment attribute from both source runes, so performance is identical. The freed slot can host a different series, raising both build diversity and efficiency at once.
Conditions
Twinborn has two layers of conditions. The "System Unlock" gate opens the feature once per account, and after that the per-rune "Fusion Requirements" still apply every time you try to fuse a pair.
The two are independent — even with the feature unlocked, fusion fails if the target runes do not match in grade or series.
Own at least 1 Mythic rune
Series and type do not matter — any Mythic rune unlocks the screen
Fusion RequirementsAll 3 below must be satisfied to fuse
Same type
Enhance + Enhance
Same series
One of 6 Twinborn groups
Both Legendary+2 or higher
Twinborn Groups
There are 6 Twinborn groups. Only the two runes assigned to the same group can be fused together.
Examples
Even two enhancement runes cannot fuse if their "series" differ.
Only runes in the same series — like the Circle series (Swablade Circle / Spin SPD Up) or the Elemental series (Frost Thunder Mark / Poison Mark) — merge into one Twinborn Rune; mixing series leaves the fuse button disabled even within the same type.
Sawblade Circle + Spin SPD Up
Frost Thunder Mark + Poison Mark
Sawblade Circle + Frost Thunder Mark
Fusion Flow
Combine two runes of the same type and series with Runic Remnant and Twinborn Core to produce one Twinborn Rune.
Runic Remnant is obtained by dismantling runes. Twinborn Core is available for purchase in the Fishing Exchange Shop.
Runic Remnant
Obtained by dismantling runes
Twinborn Core
Fishing Exchange Shop
Twinborn Split refunds all fusion materials (Runic Remnant + Twinborn Core) in full. You can freely split and re-fuse.
Cannot fuse
When no other rune shares the "same series" condition, Twinborn fusion is impossible.
Currently the enhancement rune below has no fusion partner and must be used in a single slot on its own until a same-series rune is added in a later update.
Sharp Arrow
No same-series partner — solo use
Scope
Twinborn fusion is currently available for Enhancement runes only.
Twinborn fusion for Ability, Blessing, and Etched runes will roll out in later updates on the same system.
- Live now — Enhancement runes
- Later updates — Ability · Blessing · Etched
Twinborn Rune in detail
Twinborn Rune is a new system released via OTA update on 2026-05-14. It fuses two runes of the same type and same series into one, which occupies a single rune slot while fully inheriting every skill attribute and enchantment attribute from both source runes.
The system unlocks once you own at least one Mythic-grade rune, but fusion additionally requires the same type, the same series, and both runes at Legendary+2 or higher. Currently only enhancement runes can fuse; Ability, Blessing, and Etched runes unlock in later updates.
Fusion materials are Runic Remnant (from dismantling runes) and Twinborn Core. Cost by resulting quality: Legendary+2 → 100 Remnant + 1 Core; Legendary+3 → 175 Remnant + 2 Core; Mythic → 300 Remnant + 4 Core. Twinborn Split refunds all materials in full, so you can split and re-fuse freely.
Practical tip: Players with both runes of a same-series pair at Mythic can fuse immediately. If only one side is at Mythic, raising the partner rune will give you the best slot-efficiency gain right away. Runes without a pair (like Sharp Arrow) cannot become Twinborn Runes — keep them in a single slot.
FAQ
QWhat unlocks the Twinborn system?
Owning at least one Mythic-grade rune unlocks the Twinborn Workshop. To actually fuse, you additionally need a same-type, same-series rune pair plus Runic Remnant and Twinborn Core.
QDoes fusing weaken the rune effects?
No. The fused Twinborn Rune fully inherits both source runes' skill attributes and enchantment attributes. Only the slot count is reduced to one — performance stays the same.
QCan I fuse an enhancement rune with an ability rune?
No. Only same-type runes can fuse, and even within the same type they must share a series. "Sawblade Circle + Frost Thunder Mark" are both enhancement runes but belong to different series, so they cannot fuse.
QCan Sharp Arrow be fused?
Not currently. Sharp Arrow has no other rune in its series, so it has no fusion partner and must be used in a single slot on its own.
QCan I split a Twinborn Rune and re-fuse it?
Yes. Twinborn Split refunds all fusion materials (Runic Remnant + Twinborn Core) in full. You can split and re-fuse as many times as you want.
QHow do I get Runic Remnant?
Dismantle runes to obtain Runic Remnant. Yield by grade: Normal 10, Advanced 30, Rare 90, Epic 270. Dismantling Mythic duplicates is the most efficient source.
QWhere do I get Twinborn Core?
Twinborn Core is available for purchase in the Fishing Exchange Shop.
QOne rune is Mythic and the other is Legendary — can they fuse?
Both runes need to be at Legendary+2 or higher to fuse.
