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Normal Monster Box Lv150.41%1 of 3
Normal Monster Box Lv300.36%1 of 3
Normal Monster Box Lv200.30%1 of 3
Stage Boss Box Lv150.27%1 of 3
Normal Monster Box Lv400.27%1 of 3
Normal Monster Box Lv800.24%1 of 3
Stage Boss Box Lv200.21%1 of 3
Normal Monster Box Lv650.21%1 of 3
Normal Monster Box Lv500.21%1 of 3
Stage Boss Box Lv300.19%1 of 3
Stage Boss Box Lv400.13%1 of 3
Stage Boss Box Lv500.084%1 of 3
Stage Boss Box Lv650.071%1 of 3
Stage Boss Box Lv800.037%1 of 3
Act Boss Box Lv200%1 of 3
Act Boss Box Lv300%1 of 3
Act Boss Box Lv400%1 of 3
Act Boss Box Lv450%1 of 3
Act Boss Box Lv500%1 of 3
Act Boss Box Lv600%1 of 3
Act Boss Box Lv650%1 of 3
Act Boss Box Lv700%1 of 3
Act Boss Box Lv850%1 of 3
Act Boss Box Lv900%1 of 3
Skeleton Bone
CommonMaterial#120002
Tradable on Market
Material EffectsEngraving
WeaponCritical Damage50%
+15~20%T2
WeaponFire Damage Percent50%
+20~30%T2
ArmorArmor50%
+25~50T1
ArmorArmor50%
+10~15%T1
AccessoryAdd HP Per Hit50%
+1~2T1
AccessoryAttack Speed50%
+4~5%T1
% = chance to roll that stat when a slot has multiple options (equal odds — the game stores no weighting).
Compare in Effects browser →Where to Find
Drop chance from chests
Per-open chance (base pool). Within a tier group one item is chosen, so your exact odds vary by class.