When does Synthesis unlock?

Synthesis unlocks at Initial (Hero Level 4). The Cube function order is listed on the /cube index, and the cube-guide walks the full unlock path.

What tier does Synthesis cover?

Synthesis sits in the 8 (Lv 1 → Lv 70) tier range. Cube leveling gates which recipes are available — Offering, for example, now unlocks at Cube Level 10 (changed in patch 1.00.22 from Level 20).

Where does Synthesis sit in the function order?

Synthesis is function 2 in the eight-function Cube. The other seven functions are linked from the /cube index.

Cuberarev1.00.26

Synthesis

Cube / Progression

Combine 9 same-rarity items into 1 of the next grade. Output item level comes from a dropdown, not the fodder.

Key attributes

Unlocked: Initial (Hero Level 4)
Order: 2
Total Functions: 8
Recipe Tiers: 8 (Lv 1 → Lv 70)
Enhancement Layers: Decoration, Engraving, Inscription

Notes

Synthesis rolls the next-grade odds below Immortal 100% of the time. From Immortal up the roll can stay the same grade, and a rare great success jumps two grades (★). Always set the output item-level dropdown deliberately — it does not auto-pull from the fodder.

Synthesis Transmutation Formula

The Horadric Cube enables key item conversions and tier upgrades. Always verify material requirements before transmuting, and align conversions with daily bonus schedules to minimize resource waste.