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

Yirkas Blue Scales
Bosstiary · ArchfoeBoss rewardCan hasten itself with a defensive ability.
Creature resistance values; world limits may adjust them. Negative values indicate a weakness.
Paralysis · 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.
blue goanna scale · 1–6 · 100%
platinum coin · 1–17 · 100%
ultimate health tonic · 1–5 · 100%
gold ingot · 1 · 11.54%
gemmed figurine · 1 · 8.79%
Yirkas' egg · 1 · 8.24%
lizard heart · 1 · 6.59%
green gem · 1 · 3.85%
blue gem · 1 · 3.3%
pyrestorm leggings · 1 · 3.3%
bonecrest hood · 1 · 3.3%
giant sword · 1 · 2.75%
jade hammer · 1 · 2.75%
war axe · 1 · 2.75%
nightfang dagger · 1 · 2.2%
gold ring · 1 · 2.2%
blackthorn shield · 1 · 1.1%
Sunfiligree Arbalest · 1 · 1.1%
flameheart robe · 1 · 1.1%
hellfire sword · 1 · 0.55%
spellbook of mind control · 1 · 0.55%
bronze leggings · 1 · 0.55%
raw watermelon tourmaline · 1 · 0.36%
red silk flower · 1 · 0.36%
ring of green plasma · 1 · 0.22%
runewrought carapace · 1 · 0.165%