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Necrobinder Master Guide: From First Run to A20

💀 Master Guide · Updated Jun 1, 2026 · 12 min read · 32.1% WR · 2nd Best Character

Table of Contents

1. Character Overview — Why Necrobinder? 2. Core Mechanics — Minions, Souls & Doom 3. Build #1: Summon Army (Beginner → A15) 4. Build #2: Doom Execute (A15 → A20) 5. Build #3: Hybrid — The A20 Sweet Spot 6. Board Management — The Skill Gap 7. Complete Card Tier List 8. Best Relics & Synergies 9. Ascension Climbing Roadmap 10. Necrobinder in Co-op

Necrobinder is STS2's first brand-new character — a dark summoner who fills the battlefield with undead minions while accumulating Soul energy for devastating finishers. With a 32.1% community win rate, Necrobinder is the 2nd-best performing character, right behind Silent. This guide covers everything: from basic minion management to A20 Doom chains.

💀 Necrobinder at a Glance

Starting HP: 72 | Starting Relic: Soul Vessel (start combat with 1 Soul) | Two Archetypes: Summon Army & Doom Execute | Unique Resource: Souls | Unique Mechanic: 4-slot Minion Board

1. Character Overview — Why Necrobinder?

Necrobinder offers something no other character provides: a positional minion board. Your Skeletons, Ghosts, and Abominations occupy up to 4 slots and interact with enemies independently. This creates a strategic layer absent from Ironclad's face-tanking and Silent's evasion. Necrobinder is:

2. Core Mechanics — Minions, Souls & Doom

Minion Board (4 Slots)

You have 4 minion slots numbered 1-4 (left to right). Enemies attack slot 1 first (if it has Taunt), then slot 2, etc. Minions without Taunt are attacked last. Positioning matters:

Souls

Souls are Necrobinder's unique resource. Gain Souls when minions die, from specific cards (Soul Harvest), or from relics. Spend Souls on powerful finishers like Soul Nova. Souls persist between fights — you can bank them for boss encounters.

Doom Counters

Doom is Necrobinder's second archetype. Apply Doom stacks to an enemy. When total Doom ≥ enemy's current HP, the enemy is instantly executed, bypassing block. This creates a clock: stack Doom faster than the enemy kills you. Doom counters decay by 1 each turn, so you need to apply them consistently.

3. Build #1: Summon Army (Beginner → A15)

The Summon Army build is Necrobinder's most accessible archetype. Fill your board with minions, buff them, and let them win the fight while you focus on survival. Recommended for A0-A15.

Core Loop

Summon minions (fill board) → Buff minions (Undead Commander) → Replace dead minions → Accumulate Souls → Finish with Soul Nova

Key Cards

💡 Draft Priority: You need 6-8 summon cards to consistently fill your board. Take every Mass Grave and Bone Legion offered. One Undead Commander is mandatory — never skip it.

4. Build #2: Doom Execute (A15 → A20)

The Doom build is Necrobinder's high-ceiling archetype. Instead of overwhelming with numbers, you apply Doom counters to execute enemies directly. Higher skill floor, higher skill ceiling.

Core Loop

Apply Doom (Death Mark, Doom Blade) → Protect yourself (1-2 tanks) → Stack Doom to enemy HP threshold → Execute → Repeat on next enemy

Key Cards

⚠️ Doom Math: An enemy with 80 HP needs 80 total Doom stacks to execute. If you apply 8 Doom per turn and decay removes 1 per turn, you need ~10 turns. That's too slow. You need Dark Prophecy (prevents decay) or multiple Doom sources to hit the threshold in 4-5 turns. Without acceleration, Doom decks lose to enemy scaling.

5. Build #3: Hybrid — The A20 Sweet Spot

Pure Summon struggles against A20's double-boss gauntlet (minions die too fast). Pure Doom struggles against multi-enemy fights (can't spread Doom efficiently). The solution: Hybrid.

A Hybrid deck runs 2-3 summon cards for defense, 3-4 Doom cards for damage, and 2-3 utility cards for consistency. Example A20-winning decklist:

6. Board Management — The Skill Gap

Board management separates good Necrobinder players from great ones. Master these techniques:

  1. Sacrifice Timing: Sacrifice a Skeleton at 1-2 HP — not at full HP. Use Dark Offering or Soul Drain to extract value before the enemy kills it.
  2. Slot Rotation: When your slot-1 Skeleton dies, everything shifts left. A Ghost in slot 3 is now in slot 2 — exposed. Always keep a fresh Skeleton in your hand to fill the gap.
  3. Pre-Summoning: Against bosses with predictable attack patterns, summon minions the turn BEFORE the big attack. Your new minions will tank it.
  4. Soul Banking: Don't spend Souls on small fights. Bank them for elites and bosses. A Soul Nova at 10+ Souls one-shots most Act 2 bosses.
  5. Doom Target Priority: In multi-enemy fights, focus Doom on the highest-HP target. AoE damage or minions handle the rest. Don't spread Doom thin.

7. Complete Card Tier List

Tier Cards
S Mass Grave, Undead Commander, Soul Nova, Death Mark, Dark Prophecy
A Bone Legion, Skeleton Crew, Doom Blade, Soul Reaper, Dark Offering, Ghost Form, Soul Harvest
B Graveyard Shift, Decay Touch, Soul Drain, Raise Dead, Bone Throw
C Bone Fragments, Wither, Dark Pact, Cursed Blade

8. Best Relics & Synergies

9. Ascension Climbing Roadmap

10. Necrobinder in Co-op

Necrobinder is the #1 co-op pick. Your taunt minions protect all 4 players, not just yourself. Key co-op synergies:

Also check: Summon Build Deep Dive · Doom Build Guide · Defect vs Necrobinder · Character Page