Base creature values. Events, world settings, difficulty and loot bonuses can change an encounter.

Countess Sorrow
Bosstiary · NemesisBoss rewardCan hasten itself with a defensive ability.
Creature resistance values; world limits may adjust them. Negative values indicate a weakness.
Paralysis · Transformation · Invisibility
Base chance per roll, not a guaranteed reward. Bonuses, world multipliers and boss participation change the result. Charged items use their own quantities. Container contents also require the container to drop.
Countess Sorrow's frozen tear · 1 · 100%
soul orb · 1 · 85.29%
gold coin · 1–169 · 82.35%
platinum coin · 1–4 · 55.88%
worn leather boots · 1 · 47.06%
stormveil robe · 1 · 32.35%
protection amulet · 1 · 23.53%
demonic essence · 1 · 20.59%
bloodsteel greaves · 1 · 8.82%
stealth ring · 1 · 5.88%
silver mace · 1 · 4.21%