StS2 / Guides / Bosses / Soul Fysh
Soul Fysh
Boss Guide Act 1 — Underdocks

Soul Fysh

Turn 4-5: Fade makes damage useless, then Scream + Vulnerable 3 sets up deadly incoming damage next cycle.

HP 211
A8+ 221

Mechanics

IntangibleBeckonVulnerable

Danger Turns

Turn 4-5: Fade makes damage useless, then Scream + Vulnerable 3 sets up deadly incoming damage next cycle.

Attack Patterns

01 Fixed 5-Move Cycle (loops forever)
T1
Beckon

Shuffles 2 Beckon status cards into your deck (1 draw pile, 1 discard).

T2
De-Gas

16 dmg (17 A9+).

T3
Gaze

7 dmg (8 A9+), shuffles 1 Beckon into discard.

T4
Fade

Gains Intangible 2 — all damage reduced to 1 for 2 turns.

T5
Scream

11 dmg (12 A9+), applies Vulnerable 3.

Strategy

1

Do NOT waste burst damage during Intangible (turns 4-5) — all damage is reduced to 1.

2

Concentrate your attacks on turns 2-3 for maximum damage.

3

Play Beckon cards when drawn — holding them at end of turn deals unblockable damage to you.

4

Save Block for Scream (Vulnerable 3 amplifies all damage for the next 3 turns).

5

Poison ticks and Doom ignore Intangible — Silent and Necrobinder excel here.

6

Patience is key — this is a longer fight with forced downtime windows.

Best Counters

Poison/Doom (ignore Intangible)Save burst for non-Intangible turnsArtifact blocks VulnerablePlay Beckon cards immediately
GGEZ.GG · Slay the Spire 2 · Early Access · March 2026
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