chaos bloodline question (where is the boss?)

Hey!

Ive been spamming white t14 and 15 (level 81 and 82) maps with ultimatum. But havent seen a single boss as the 10th level so far. around 30 runs now. What am i dooing wrong??

Thanks in advance!
Last bumped on Nov 17, 2025, 4:38:04 PM
Trialmaster has about a 3% chance of appearing in a T14+ Ultimatum encounter at round 10:

https://www.poewiki.net/wiki/Ultimatum

Atlas passives can bring that up to 5-6%. I ran about 20-25 Ultimatum encounters before getting a Trialmaster with the improved boss chance passives allocated.
ah thanks! ill keep trying!
Just use the 2c scarab to force spawn the boss.

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