Obsidian Knight Boss Guide: Diagnose a Failed Run

Category Boss GuidesUpdated 10/26/2026

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この記事の結論

Identify whether a run fails before boss entry or during the fight, then compare one offensive trigger, survival effect, or permanent upgrade at a time.

Identify where the run breaks before adding more damage

When a boss stops your progress, record whether resources were lost before reaching the boss, at entry, or during the boss fight. Obsidian Knight changes available skills from run to run, so waiting for one exact card is less useful than checking whether an offensive trigger connects to a survival effect.

This guide is for players who can reach a boss in normal Acts, Nightmare, or another high-difficulty run but cannot finish the encounter.

Split one defeat into four stages

Stage	Record	Next decision
Before the boss	Wave clearing, Potion use, and damage taken	Whether regular progression must improve first
At entry	HP, Armor, Potions, and main-plan completion	Whether enough resources reached the boss
During the boss	Fight duration and the first effect to fail	Whether offense or survival became limiting first
After the run	End point, end reason, and missing role	Whether to change cards or permanent progression

Reaching the boss does not mean every attempt reached it in the same condition. Compare entry HP, Potions, and build completion.

Choose the next change from the symptom

Failure point	Check first	Change on the next attempt
Potions are gone before the boss	Can the build clear regular groups?	Add one effect that reaches multiple enemies
HP or Armor is low on entry	Does offense trigger healing or damage prevention?	Focus survival on one repeatable effect
Only the boss fight takes too long	Can the build sustain damage on one target?	Strengthen the same trigger as the main attack
Every run fails in a different place	Are early choices split across unrelated plans?	Choose one build axis during the first upgrades
The build forms but dies late	Is damage or survival the limiting factor?	Keep equipment fixed and change one card choice

Boss-entry record

Run	Entry HP	Armor	Potions	Main trigger	Survival effect	Boss end reason
1
2
3

Compare whether more resources reached the same point instead of relying only on absolute values.

Connect one offensive trigger to survival

Public community examples include Critical hits connected to Stun or healing, Potions connected to Armor or damage, and Dodge connected to another effect. The useful lesson is not to copy every named card. Choose an event that happens often in the current run and connect it to both offense and survival.

Choose the most repeatable trigger currently available.
Add one damage effect that uses that trigger.
Check whether the same trigger can support healing, Armor, Stun, or Deflect.
Skip an unrelated powerful card when it would split the build into another plan.

No combination is guaranteed to appear. When a build does not form, record the missing role and compare one change under the same conditions.

Cover four build roles

Role	Question
Trigger	Is there a frequent event such as Critical, Potion use, or Dodge?
Follow-up damage	Does that trigger produce sustained offense?
Survival	Does it connect to healing, Armor, Stun, or Deflect?
Wave clearing	Can regular enemies be cleared before the boss?

Focusing only on boss damage can reduce the resources that reach the encounter. Choose the one missing role as the next test.

Avoid slow engines in short encounters

Community discussion notes that a Potion engine can grow strong in a long PvP run but may fail to assemble during a short Dungeon encounter. When only a few upgrade choices occur before the boss, prefer an attack or survival effect that works immediately over a plan requiring several prerequisite cards.

Priority when few choices occur

A trigger that works immediately
Regular-wave clearing
Survival that remains at boss entry
Extra effects that work only after prerequisites appear

Judge the plan by whether it forms before the boss, not only by its maximum completed value.

Compare three attempts

Keep equipment and card choices unchanged for one attempt and record the failure point.
On the second attempt, change either offense or survival, not both.
Keep that direction for the third attempt and compare remaining HP and Potions on boss entry.

Comparison	Equipment	Skill Cards	Permanent progression	Result to inspect
Baseline	Fixed	Fixed	Fixed	Failure point
Card change	Fixed	One change	Fixed	Entry resources and boss result
Permanent change	Fixed	Return to baseline	One change	Difference under the same conditions

If the result does not improve, review permanent systems such as equipment, Skill Card upgrades, and Fortifications. Test run choices and permanent upgrades separately so the cause remains visible.

Limits

This guide does not fix a universal attack order, HP value, or weakness for each boss.
Card values in older videos and posts may differ from the current game screen.
Community builds are successful examples, not guaranteed outcomes.
If the run ends before the boss, solve regular-enemy clearing and survival first.
Do not copy competitor advice that assumes manual movement, dodge timing, or target selection.
Do not turn one successful build into a fixed optimum for every boss and mode.

If the result does not improve

If the run breaks before the boss, return to wave clearing and survival.
If entry resources are low, fix where they were spent on the route.
If entry resources are sufficient but the fight takes too long, test damage from the same trigger.
If damage is sufficient but the run dies, test one survival role.
If three runs show no change, inspect equipment, Skill Card upgrades, and Fortifications separately.