
CHAPTER 2 · BOSS 7 · ENGINEER
GEARHEART
“The Rusted Colossus”
GEARHEART was the last automaton built before the Old World fell. Its makers gave it directives: PROTECT, MAINTAIN, ENDURE. With no one left to protect, it now MAINTAINS itself by EXTRACTING from those who pass.
ELEMENT
GROVE
HP
16,000
CHAPTER
2 of 3

VISUAL IDENTITY
A massive humanoid mech of corroded copper-bronze panels and industrial gears. Green energy core glowing in chest. One arm replaced with a rust-claw, the other ends in a drill. Half corpse, half running engine. Voice carries static.
THREE PHASES · ESCALATING SOUL
Phase Breakdown
PHASE 1 · 100% → 66%
IDLE PROCESS
Drill Strike every 6 turns. Cell Lockdown welds 2 cells shut for 4 turns — locked cells cannot be cleared. Player chooses what to lose.
“DIRECTIVE... ACTIVE. INTRUDER... DETECTED. INITIATING... PROTOCOL: ELIMINATE.”
PHASE 2 · 66% → 33%
EXTRACTION
Resource Extract absorbs 3 earth-cells every 7 turns, healing boss 5% HP per cell. Lockdown intensifies to 3 cells per cycle. Fire ULTs to consume cells before boss steals them.
“FUEL... LOW. CONSUMING... AVAILABLE... RESOURCES.”
PHASE 3 · 33% → 0%
OVERCLOCK
Attacks every 4 turns. Critical Mass electrifies a row every 6 turns — clearing it damages you. Lockdown locks 4 cells; board genuinely runs out of space.
“OBJECTIVE... UNCHANGED. ALL... INTRUDERS... ARE... FUEL.”
DEATH
“DIRECTIVE... FAILED. SHUTTING... DOWN... ALL... SYSTEMS...”
STRATEGY
How to Defeat
✓ BEST SQUAD
Crocodiles — earth-cell absorption + MOSSWEAVER's chain mage amplifies passive earth damage. Race-pure: Iron Hide passive.
✗ WORST SQUAD
Pure burst — locked cells make burst less effective.
★ KEY LESSON
Board management. Damage isn't everything; preservation is.
⚡ THE MOMENT
Phase 3, board has 5 locked cells, Critical Mass row about to electrify — MOSSJAW Bedrock Bastion converts ALL empty cells to earth, electrify row absorbed by earth-cells, cascade kill.



