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BIO-WRAITH MK-VII "Leviathan"Mech

BIO-WRAITH MK-VII "Leviathan"

legendary heavy-class mech — 75 tons

Armor: 340

Heat Capacity: 42

Speed: 6

Jump Jets: No

Weapon Systems

Plasma Sword (left arm)4d10 plasma +8 heat
Railgun (left arm)5d8 kinetic +7 heat
Laser Cannon (right arm)3d10 laser +6 heat
Dual Artillery Cannons (right arm)4d12 explosive +9 heat
Sonic Screech (head)3d8 thunder +5 heat
Tungsten Maw (head)3d6 piercing +2 heat

Special Systems

Fission-Antimatter Core, Bioluminescent Vein Network, CASE II (Cockpit Shielding), Targeting Computer, Tail Stabilizer Array

Activated: Sonic Screech: All units within 3 hexes must make a DR 16 structure save or suffer -2 to attack rolls until end of next turn. Ceramic and light armor units take an additional 2d6 damage.
On Critical Hit: Tungsten Maw: On a critical hit in melee, the Leviathan bites through armor, ignoring 10 points of the target's armorRating for this attack.
On Overheat: Core Breach Pulse: When heat exceeds capacity, the antimatter core vents in a 2-hex radius, dealing 3d10 energy damage to all units. Leviathan loses 15 heat but suffers 20 internal damage.
Passive: Bioluminescent Veins: Grants +2 to all attack rolls in darkness. The glowing veins also act as a secondary cooling loop, reducing weapon heat by 1 per round passively.
On Hit: Railgun Penetration: If the Railgun deals 20+ damage in a single shot, it penetrates to the target's internal structure, bypassing 50% of remaining armor.

LEVIATHAN moves 6 hexes per turn. It cannot use Jump Jets. Each round, total heat from fired weapons is tracked; if heat exceeds 42, trigger Core Breach Pulse. Plasma Sword is melee-only (adjacent hex). Railgun has range 1-18 hexes. Laser Cannon range 1-15. Dual Artillery range 6-20 (minimum 6). Sonic Screech is an area effect, usable once every 2 rounds. Tungsten Maw is melee-only. Fission-Antimatter Core: if center torso is destroyed, trigger a final Core Breach (5d12, 3-hex radius). CASE II protects the pilot; cockpit is not destroyed unless the mech is completely reduced to 0 armor and 0 internal structure.

biomechheavyassaultplasmarailgunartillerysonicmeleelegendaryfissionantimatterbioluminescenttailclose-combatenergy weapon
Text: Claude Sonnet 4.6Image: Nano BananaStyle: Cyberpunk

“A 70 foot tall biomech with a mouth full of razor sharp teeth that can cut tungsten and release a sonic screech that can shatter ceramic and burn through metal. It has a fission antimatter core located in the top center of the chest. Right above that is the pilot's cockpit and then it has these somewhat bulky legs with a tail and glowing blue veins all around it. On its right arm it has a laser cannon and two artillery cannons on the sides of the arms. It's left arm houses a rail gun, below which is a plasma sword”