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Character Overview

Mortaccio is Vampire Crawlers' Trigger specialist, starting with Bone. Every time he plays a Bone card, he adds 1 Trigger stack on top of any existing Trigger effects. When Trigger-focused Gems and Chain Link Arcana are assembled, each Bone play cascades into multiple additional hits, making his burst damage ceiling the highest in the game for a single-turn detonation. He is the absolute master of the Bone-Trigger archetype and sits firmly at A-tier.

Unique Passive

Each time Mortaccio plays a Bone card, he gains 1 additional Trigger stack. These stacks interact multiplicatively with Trigger-based Gems and Arcanas, meaning each subsequent Bone play within a Combo explodes the Trigger chain further. The more Bones in the deck, the faster the stacks accumulate.

Strengths

  • Each Bone play adds Trigger stacks; synergy with Trigger Gems and Arcanas is exponentially powerful
  • Bone is a strong early weapon, ensuring the build core is available from the first floor
  • Peak single-turn burst damage among all Crawlers when Trigger chain is fully loaded
  • Exceptional Chain Link synergy—each Bone played within a Combo stacks bonus damage on top of Trigger hits
  • High Bone density in the deck creates a self-reinforcing loop where stacks build and explode constantly

Weaknesses

  • Over-specializing in Bone-Trigger narrows deck variety and limits flexibility against certain enemy types
  • Trigger stacks are gated on drawing Bone cards; turns without Bone in hand reduce Trigger output
  • Without Trigger-specific Gems and Arcanas, the passive provides limited benefit

Recommended Build

Bone Combo Trigger

Stack 6+ Bone cards in the deck and secure Chain Link Arcana plus Trigger Gems. Each Bone play adds 1 Trigger stack which chains with Chain Link's bonus, causing multi-hit combos from a single card. Reaching double-digit Trigger stacks in mid-game produces devastating turn bursts. Add Combo Stack Relic to multiply Trigger explosion damage further.

Recommended Arcanas

  • Chain Link: Bonus damage during Combo that stacks with each Trigger hit from Bone plays—primary Arcana.
  • Mana Syphon: Recovers Mana when cycling through large numbers of Bone cards, preventing Mana starvation.
  • Sharp Mind: Maintains a full hand of Bone cards for consecutive plays, preventing stacks from stalling.

Recommended Relics

  • Combo Stack: Multiplies bonus damage during Combo; Trigger hits count, making each explosion dramatically larger.
  • Stardust Anvil: Raises Bone's base damage, increasing the baseline value of each Trigger hit.
  • Gem Hammer: Speeds up Bone evolution so the upgraded weapon arrives earlier.

Synergies

Bone card density is the fuel of Mortaccio's engine—6+ copies keep stacks building consistently. Chain Link is arguably his strongest Arcana partner, converting the Trigger-Combo interaction into catastrophic single-turn damage. Wild Gems bridge Mana gaps during heavy Bone cycling, ensuring stacks never stall due to empty Mana.

Tier Rating: A Tier

The undisputed master of the Bone-Trigger archetype with the highest single-turn burst ceiling in the game when fully built. Narrow specialization and Arcana-draw dependency hold him at A-tier rather than S.