Frostforged links that numb wounds shut. Uncomfortable; effective.
| Ores (N) | P(Frostbite Mail) no lock | Expected forges | With RNG lock |
|---|---|---|---|
| 25 | 10.6% | ~1 in 10 | needs 32 ores |
| 32 | 9.7% | ~1 in 11 | ~1 in 3 locked |
| 37 | 6.2% | ~1 in 17 | ~1 in 3 locked |
| 55 | 0.1% | ~1 in 810 | ~1 in 3 locked |
"Expected forges" = 1 ÷ combined probability of rolling the class and this variant. RNG lock removes the class roll once N ≥ 32, leaving only the 41.7% variant roll.
Solved at the Frostspire Expanse anvil for the tank_vitality archetype with RNG lock — vitality and reinforcement trait ores pinned at the 30% sweet spot.
Trait coverage: Frozen Heart 30% OPTIMAL
Highest score: 1016.1 EHP on Frostbite Mail at 41.7% per forge — the no-compromise endgame recipe.
⚡ Load in CalculatorTrait coverage: Frozen Heart 30% OPTIMAL · Mythril 30% OPTIMAL
40 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.
| Rune | Effect | Why it fits |
|---|---|---|
| Ward Patch | 10–20% Ward | a proactive shield covers the lower base HP of lighter pieces. |
| Briar Notch | 8–16% Briar | cheap reflected damage while staying mobile. |
| Armor | Base HP | Defense | Forged HP | Effective HP |
|---|---|---|---|---|
| Shogun Do | +110 | 15% | +946 | 1,231 |
| Vanguard Cuirass | +95 | 14% | +817 | 1,066 |
| Frostbite Mail ← | +78 | 12% | +671 | 876 |
| Knight's Brigandine | +62 | 10% | +533 | 704 |
| Ironclad Hauberk | +48 | 7% | +413 | 551 |
Same-class alternatives at an identical 8.6x multiplier, quality 100, no traits or runes. EHP = (100 + forged HP) ÷ (1 − damage reduction), capped at 80% DR.
Frostbite Mail is a Medium Chestplate: its class roll RNG-locks at 32 ores, its recommended crucible is 25 and its minimum is 11. At 32+ ores only the variant roll remains — about ~1 in 3.
The solver's BiS tank recipe is 12× Frozen Heart + 28× Skyforge Ingot — 8.6x multiplier, 41.7% per forge at Frostspire Expanse. See the recipe cards above to load it directly.
Base 78 HP before the forge multiplier — at a 8.6x recipe that is 671 HP, or about 876 effective HP including its 12% damage reduction.
Frostbite Mail is a A-tier medium chestplate with 12% defense and 2 rune slots — it costs 6% move speed. With RNG lock it lands in ~3 forges on average — see the EHP table for where it ranks inside Medium Chestplate.