Quick summary
- Encounter: Iseult is the Act 2 boss in the released three-act campaign.
- Reward: defeating the Banshee unlocks Ruadh, according to version 0.8.
- Current stun-bar rule: damage contributes more, parries contribute less and decay is slower.
- Defense: boss block-breaking attacks can be parried, but this is not an exact Iseult timing guide.
- Historical fixes: jumping away and never returning, floating and stuck states were addressed in versions 0.9 and 0.11.
- No exact health, phase threshold, safe-window or parry-frame table is claimed here.
Walkthrough progress
Current: Iseult, the Banshee
Completed
- ✓ Act 1
- ✓ Gilles the Hog
- ✓ Act 2 route
Ahead
- ○ Act 3
How to beat Iseult, the Banshee
| Fight state | Safer response | Verified reason | Evidence limit |
|---|---|---|---|
| The stun bar is available and Iseult is punishable | Use reliable, recoverable damage pressure | Version 0.11 increased the effect of damage on the stun bar | No damage-per-point or fixed combo count is published |
| A familiar attack cue begins | Parry for defense only when the cue is learned; otherwise preserve the run with movement | Boss block-breaking attacks are parryable, but parries now add less stun-bar pressure | No universal Iseult parry frame or input-delay allowance is published |
| You need to disengage and reset spacing | Reposition, then re-enter with a short confirmed punish | The stun bar decays more slowly than before version 0.11 | The official note gives no exact decay delay or rate |
| The stun state creates an opening | Commit only to the damage window you can finish and recover from | Sustained damage is the current route to more bar pressure | No official phase threshold, opening duration or best combo is claimed |
| Iseult disappears, floats or never returns | Record the version, branch and moments before the state, then report a possible regression | Paper Cult fixed related states in versions 0.8, 0.9 and 0.11 | A historical fix does not guarantee that every variant is impossible |
Current stun-bar strategy
- 1
Confirm the displayed build and branch
The normal branch is verified at 0.14.58630, while the published Banshee stun-bar rule last changed in 0.11. Crossplay Beta can use a different compatible version. - 2
Favor reliable damage pressure
Paper Cult says damage affects the stun bar more than before. This supports sustained safe damage, not a universal damage-per-second target. - 3
Use parries for defense without farming them for stun
Parries now affect the stun bar less. A successful read still matters, but an old parry-heavy plan may build the bar more slowly than safe damage pressure. - 4
Re-engage before the slower decay erases progress
The bar decays more slowly in 0.11, giving more room to reposition. The note does not publish an exact decay delay or rate. - 5
Verify Ruadh after the victory
Paper Cult ties Ruadh's unlock to defeating the Banshee. Check the Hero roster after the encounter transition.
What changed across Banshee patches
Patch history
- Patch: 0.14.58630 current baselineNo newer Banshee-specific balance rule is listed; the version 0.11 stun-bar behavior remains the latest published rule.
- Patch: 0.11.57863Damage affects the stun bar more, parries affect it less and the bar decays more slowly; an Iseult floating issue was also fixed.
- Patch: 0.9.57408Fixed Iseult jumping away and never returning, plus another floating or stuck state.
- Patch: 0.8.57278Ruadh now unlocks after defeating the Banshee; boss block-breaking attacks can be parried.
Encounter-order evidence
A July 26, 2026 all-boss recording labels Iseult after two Act 2 Captain chapters and the Trio Norsemen, then continues into Biome 3. A separate August 1 recording shows a dedicated fight.
These sources corroborate that the released game contains the encounter and where it sits in those runs. They do not prove a fixed pre-boss order, target time or exact phase timeline across Heroes, party sizes, difficulties and campaign upgrades.
If Iseult leaves the arena or floats
Paper Cult has already fixed several versions of this behavior. If it happens on the current build:
- record the displayed version and Steam branch;
- capture whether the session is solo or co-op and who hosts;
- preserve the moments before the jump, float or stuck state;
- report it as a possible regression with the current run conditions.
What does defeating the Banshee unlock?
Ruadh Stonecrusher. Paper Cult published the unlock requirement in version 0.8.57278.
How does the Banshee stun bar work in patch 0.11?
Damage affects it more, parries affect it less and the bar decays more slowly than before. The official note does not publish exact rates.
What is the easiest way to beat Iseult?
Favor short, recoverable damage windows that keep pressure on the stun bar. Use parries when you know the cue, but do not depend on parry farming because version 0.11 reduced their stun-bar contribution.
Can the Banshee's block-breaking attacks be parried?
The official version 0.8 rule says boss block-breaking attacks can be parried. A complete Iseult-specific move and timing table still needs current original captures.
Sources
- Paper Cult's current version 0.14.58630 announcement
- Paper Cult's version 0.11.57863 announcement
- Paper Cult's version 0.9.57408 announcement
- Paper Cult's version 0.8.57278 announcement
- Current all-boss recording with chapter order
- August 1 dedicated Iseult fight recording