The Necromastery Combo Build is an advanced Necrobinder strategy that chains multiple necromancy-themed effects into a single explosive turn. Necro Mastery — the Power card — scales based on cards Exhausted over the entire run, so the longer combat goes and the more you recycle, the higher the burst ceiling rises. Assembling the combo requires specific pieces, but when conditions align the damage output is unmatched.

• Necro Mastery: The namesake Power; accumulates stacks whenever cards are Exhausted and converts those stacks into massive damage when activated.
• Seance: Generates Soul cards that Exhaust on play, feeding Necro Mastery stacks each turn.
• Dredge: Recovers Exhausted cards, extending the Exhaust chain and re-triggering combo pieces in long fights.
• Reaper Form: Ultimate Power — transforms Necrobinder into Reaper Form, amplifying all death-related effects including Doom and Exhaust synergies.
• End of Days: High-impact Skill that accelerates Doom or deals damage scaled by accumulated effects; used as the combo finisher.
• Oblivion: Ethereal that Exhausts for free value; pairs with Necro Mastery by contributing stacks without Energy cost.
• Lethality: Power that converts Doom stacks or Exhaust count into attack scaling, bridging the Exhaust engine with damage.

• Funerary Mask: Each Exhaust event benefits from this relic, amplifying the stack-per-Exhaust rate for Necro Mastery.
• Undying Sigil: Sustains HP through the multi-turn setup phase while the combo assembles.
• Ivory Tile: Provides Osty-related bonuses during setup turns, generating passive value before the combo fires.

1. Identify the combo core early: Necro Mastery must be obtained in Act 1 or early Act 2 for stacks to reach meaningful levels.
2. Build Exhaust volume around Necro Mastery — add Seance and Oblivion to guarantee multiple Exhaust triggers every turn.
3. Maintain Reaper Form priority: once Reaper Form is active, every Exhaust event gains additional multipliers.
4. In Elite and Boss fights, spend early turns setting up Powers and accumulating stacks rather than trading damage.
5. Fire the finisher (End of Days, Lethality activation, or a fully-stacked Necro Mastery attack) when stacks are at their peak — typically after 3-4 setup turns.

• Highest: Necro Mastery, Reaper Form (combo engine core)
• High: Seance, Oblivion (Exhaust volume feeders)
• Medium: Lethality, End of Days (finisher and bridging effects)
• Low: Cards that neither Exhaust nor interact with Doom; they dilute the combo density

• Necro Mastery stacks persist between combats if the Power remains active — prioritize keeping it online throughout the run.
• Do not fire Reaper Form until Necro Mastery is also active; Reaper Form alone does not end fights quickly enough without the scaling.
• Against fast-killing enemies in Act 1, carry at least two Block cards — the setup phase leaves you exposed for 2-3 turns.
• Dredge becomes critical in Boss fights where the combat lasts long enough for the Exhaust pile to fill; recycling Seance gives you another cycle of stacks.