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Mecha-Tiamat, Mighty

Mecha-Tiamat, Mighty CR 21 (Combatant)

XP 409,600
N Gargantuan construct (technological)
Init +10; Senses darkvision 60 ft.; Perception +35


HP 500
EAC 36; KAC 38
Fort +20; Ref +20; Will +16
Defensive Abilities nanite repair, unliving; DR 20/–; Immunities construct immunities; Resistances acid 20, cold 20, electricity 20, fire 20; SR 32
Weaknesses disassemble, vulnerable to critical hits


Speed 50 ft., fly 100 ft.
Melee slam +32 (12d10+33B)
Multiattack 4 slams +26 (6d10+33B)
Ranged power beam +35 (13d6+21; see below)
Space 20 ft.; Reach 20 ft.
Offensive Abilities summon weapon


Str +12; Dex +10; Con –; Int +7; Wis +7; Cha +7
Skills Acrobatics +35, Athletics +40, Computers +35, Intimidate +35
Languages Common, Draconic


Disassemble (Ex)

When the Tiamat Gestalt suffers damage from a critical hit, it must make a DC 25 Fortitude saving throw or be separated into its five component robots. When this happens, Tiamat Gestalt disappears and is replaced with five robot dragons.

Any damage taken by Tiamat Gestalt is divided evenly between the five robot dragons.

To form the Tiamat Gestalt, the five robot dragons must not be incapacitated, they need to be adjacent to each other, and each use a standard action to assemble into the Tiamat Gestalt. If the individual robot dragons have less than one-half their base hit points, they cannot form into the Tiamat Gestalt, as their assembly matrices are too damaged.

Nanite Repair (Ex)

The Tiamat Gestalt’s nanites restore 21 HP to it every hour. Once per day, the Tiamat Gestalt can use a standard action to restore 11d12 HP to itself or any other robot.

Power Beam (Ex)

When using its power beam ranged attack, the Tiamat gestalt can choose to make the damage either acid, cold, electricity, or fire.

Summon Weapon (Ex)

The Tiamat Gestalt can use Hyperspace portals to summon weapons as a standard action. The summoned weapon can be either an advanced melee weapon, long arm, or heavy weapon of level 20 or less. It can only summon one weapon at a time. If the weapon requires ammunition, it comes with a full load, but cannot be reloaded for 24 hours. With the exception of analog advanced melee weapons, Tiamat Gestalt cannot summon the same weapon within the same 24 hour period.


The entity known as “Mecha-Tiamat” is the amalgamation of five powerful robot dragons. Each has been augmented with a specialized device known as an assembly matrix that allows the robot dragons to alter and combine their forms to become a single individual being. Through the assembly matrix, the virtual intelligences of the robot dragons are combined to form a sixth and distinctive personality: a being whose name was taken after the legendary chaos dragon Tiamat.

As Tiamat, the five component robot dragons, despite their wildly varying artificial personalities, are all unified by their instincts to hunt and ferocity in battle. Their fusion as Tiamat is one of the most effective in the history of gestalt robots; Tiamat moves, speaks, and acts as if she were a single robotic killing machine instead of an amalgamation of five separate units. Although incredibly intelligent, the speed in which Tiamat reacts makes it appear that she relies solely on instinct.

Much like her dragon programmers, Tiamat embodies the desires of all dragonkind: to hunt and to amass power and wealth. Tiamat chooses to spend this wealth to increase her already significant powers.

She seeks out techno-magical devices and fuses them to her component dragon robots so that she may make use of their powers when combined.

Section 15: Copyright Notice

Starfarer Adversaries: Legacy Bestiary © 2020, Rogue Genius Games LLC; Author: Jacob E. Blackmon; Additional work by: Owen K.C. Stephens. Produced by Owen K.C. Stephens.