Per-forge probability by crucible size N without RNG lock. The Medium Leggings class curve peaks at N=21 on the gaussian weight table; Frostbite Chausses takes 41.7% of the Medium Leggings variant roll at Frostspire Expanse. With RNG Lock at N≥27 the class roll is a flat 100%.
Expected forges — with & without RNG lock
Ores (N)
P(Frostbite Chausses) no lock
Expected forges
With RNG lock
20
9.9%
~1 in 11
needs 27 ores
27
8.2%
~1 in 13
~1 in 3 locked
32
4.6%
~1 in 22
~1 in 3 locked
55
0.0%
~1 in 33,189
~1 in 3 locked
"Expected forges" = 1 ÷ combined probability of rolling the class and this
variant. RNG lock removes the class roll once N ≥ 27,
leaving only the 41.7% variant roll.
Top 3 tank recipes for Frostbite Chausses
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.
👑 God-Roll BiS
Frozen Heart×9
Skyforge Ingot×21
Total ores
30
Multiplier
8.6x
Target chance
41.7% · ~1 in 3
Est. EHP
719
Trait coverage: Frozen Heart 30%OPTIMAL
Highest score: 719.5 EHP on Frostbite Chausses at 41.7% per forge — the no-compromise endgame recipe.
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.
Frequently asked questions
How many ores do you need to RNG-lock Frostbite Chausses in The Forge?+
Frostbite Chausses is a Medium Leggings: its class roll RNG-locks at 27 ores, its recommended crucible is 20 and its minimum is 9. At 27+ ores only the variant roll remains — about ~1 in 3.
What is the best ore recipe for Frostbite Chausses?+
The solver's BiS tank recipe is 9× Frozen Heart + 21× Skyforge Ingot — 8.6x multiplier, 41.7% per forge at Frostspire Expanse. See the recipe cards above to load it directly.
How much HP does Frostbite Chausses give?+
Base 54 HP before the forge multiplier — at a 8.6x recipe that is 464 HP, or about 620 effective HP including its 9% damage reduction.
Is Frostbite Chausses worth forging?+
Frostbite Chausses is a B-tier medium leggings with 9% defense and 2 rune slots — it costs 5% move speed. With RNG lock it lands in ~3 forges on average — see the EHP table for where it ranks inside Medium Leggings.