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Hero-dric Cube Guide

The Hero-dric Cube (a nod to Diablo's Horadric Cube) unlocks at hero Level 4 and is your crafting hub.

Alchemy — turn junk into gold

Alchemy converts unwanted items into gold and Cube XP — your main early gold source. Use Auto-Fill, but Alt+Click to lock keepers first.

Synthesis — should I merge gems/items?

Synthesis combines 9 same-rarity items into one of the next grade (random, can skip tiers). Merge duplicates you won't equip; don't feed items you still use.

Crafting — early accessories

Crafting builds random gear or accessories within a level range — the best early source of accessories.

Synthesis Odds (9 same-rarity → 1)

FromSuccessGreat success / stays
Common95% → Uncommon4.8% → Rare (+2)
Uncommon96% → Rare3.8% → Legendary (+2)
Rare98% → Legendary2.4% → Immortal (+2)
Legendary99% → Immortal0.99% → Arcana (+2)
Immortal50% → Arcana50% stays (fail)
Arcana33% → Beyond67% stays
Beyond23% → Celestial77% stays
Celestial17% → Divine83% stays
Divine9.1% → Cosmic91% stays

Dismantle Value by Grade (gold)

RarityGold
Common10
Uncommon30
Rare90
Legendary270
Immortal810
Arcana2,592
Beyond8,294
Celestial29,029
Divine101,602
Cosmic355,607

Sources

Updated 2026-06