The literal heart of an ice wyrm, crystallized at the moment of death. Heart of Winter hugely boosts vitality.
A core of eternal ice thickens the wearer's lifeblood.
How the waterline works. The game counts Frozen Heart's share of the total crucible: under 10% the trait is INACTIVE; 10–30% it scales linearly (SCALING); 30–35% is OPTIMAL (full 16%); past 35% it is OVERCAP — the trait stays maxed but the extra ores are wasted multiplier.
Exact top-up formula. Adding Δ ores also grows the total N, so the real formula is Δ₁₀ = ceil((N − 10n) / 9) for the 10% line and Δ₃₀ = ceil((3N − 10n) / 7) for the 30% sweet spot — never the naive "fill to 30%".
Worked example. Say your 50-ore crucible already holds 8 Frozen Heart (16%, SCALING at 11.8%). To max out you need +10 more — landing at 18/60 = exactly 30%. And a tiny 30-ore forge holding 2 Frozen Heart needs +2 to wake the trait (4/32 = 12.5%).
| Source | World | Chance |
|---|---|---|
| Glacier Chunk | Frostspire Expanse | 14.5% (14.5%) |
| Permafrost Vein | Frostspire Expanse | 18.5% (18.5%) |
Heart of Winter applies to armor — these solver picks pin Frozen Heart at the 30% sweet spot on the best armor of its stage, the Glacier Plate.
Trait coverage: Frozen Heart 30% OPTIMAL
Highest score: 1222.7 EHP on Glacier Plate at 38.5% per forge — the no-compromise endgame recipe.
⚡ Load in CalculatorTrait coverage: Frozen Heart 30% OPTIMAL
60 ores divides cleanly by 30% — every trait ore sits at exactly the sweet spot with zero rounding waste.
⚡ Load in CalculatorTrait coverage: Frozen Heart 30% OPTIMAL
Built entirely from mined and crafted ores — no Tower of Hell drops or event items required.
⚡ Load in CalculatorEach recipe loads straight into the crucible with ores, RNG lock and target pre-set. Odds are per forge at the recipe's anvil world.
| Ore | Multiplier | Sell | Trait |
|---|---|---|---|
| Skyquartz | 6x | $45 | — |
| Frostforged Steel | 5.6x | $42 | — |
| Fireite | 5.5x | $41 | 🔥 Cauterizing Brand |
| Magma Glass | 6.2x | $47 | — |
| Cryonite | 5.2x | $39 | — |
| Winterveil | 6.4x | $48 | — |
| Rivalite | 6.5x | $49 | — |
| Obsidian | 5x | $38 | 🔥 Volcanic Glass Spines |
| Frostbite Steel | 5x | $38 | — |
| Icebound Crystal | 6.8x | $51 | — |
Frozen Heart carries a 5.8x crucible multiplier — A tier, epic rarity — sourced from Frostspire Expanse. A crucible loaded entirely with Frozen Heart forges at exactly 5.8x.
Heart of Winter caps at 30% of the crucible load: ceil(0.3 × N) ores — 15 Frozen Heart in a 50-ore forge. At 10% it activates at 10%, reaching the full 16% at 30%.
Glacier Chunk (Frostspire Expanse) at 14.5%; Permafrost Vein (Frostspire Expanse) at 18.5%.
Frozen Heart is a solid mid-game ore — respectable 5.8x multiplier plus the Heart of Winter trait for armor.