The Mephrit Dynasty has been scattered across the stars by the passage of millennia and the reckless hand of fate, yet those tomb worlds that remain have awoken hungry to reclaim the glory and grandeur they once enjoyed, and to reforge the fragments of their empire. Zarathusa the Ineffable has risen to discover his planet under assault by a strange and disturbing alien menace. To counter this threat he has roused his soldiers to war and made an alliance with Anrakyr the Traveller. As long as Zarathusa and his armies endure he is resolved that the glory of the Mephrit Dynasty should be restored, and that the young races of the galaxy learn to fear the return of the Necrons.
How This Supplement WorksThis page describes a new Detachment and a number of Formations that can be used as part of a Necron army. You can add them to an existing army, or use them to field a bespoke army from the Mephrit Dynasty. Certain units chosen from the Mephrit Dynasty Detachment and Formations can also make use of the Relics and Warlord Traits listed below.Books
FAQShield of Baal: Exterminatus
Mephrit Dynasty Special RulesThe following section describes a new Detachment and a number of Formations that can be used as part of a Necron army. You can add them to an existing army, or use them to field a bespoke army from the Mephrit Dynasty. Certain units chosen from the Mephrit Dynasty Detachment and Formations can also make use of the Relics and Warlord Traits listed below.Special RulesExecutionerThe bearer of the Edge of Eternity has the Precision Strikes special rule.Warlord TraitsWhen generating its Warlord Traits, a Warlord chosen from one of the Mephrit Dynasty Formations or Detachments may choose to roll on the table here instead of those found in Warhammer 40,000: The Rules or Codex: Necrons.
DetachmentsMephrit Dynasty Cohort![]() All units (except fortifications) must have the Necron Faction. Tesseract Vaults cannot be taken as part of this Detachment. COMMAND BENEFITS Crownworld Reawakened: You can re-roll rolls of 1 when making Reanimation Protocol rolls for Troops units from this Formation. FormationsAnrakyr’s Strategic Decurion![]() • 1 unit of Immortals • 2 units of Necron Warriors • 1 Ghost Ark • 1 Doom Scythe • 1 unit of Deathmarks None. ![]() SPECIAL RULES
Grand Strategy: You re-roll the dice when attempting to Seize the Initiative. Furthermore, as long as Anrakyr the Traveller has not been removed as a casualty, you can re-roll Reserve Rolls. Conclave of the Burning OneSPECIAL RULES
Conclave: All units in this Formation must be fielded as a single unit, even though this is not normally allowed, and they cannot leave this unit. Models with the Independent Character special rule cannot join this unit. While the C’tan Shard is alive, the opposing player must always use the C’tan Shard’s Toughness when rolling To Wound models in this Formation. The Guardians of Perdita![]() None. ![]() The units in this Formation retain all of the special rules specified from their individual Formation datasheets. In addition, the following special rules apply to the Formation.
SPECIAL RULES Regent of Mephrit: As long as the Necron Overlord from Zarathusa’s Royal Decurion has not been removed as a casualty, that Formation’s Command Protocols special rule applies to all non-vehicle units in this Formation. Zarathusa’s Royal Decurion![]() • 1 unit of Immortals • 2 units of Necron Warriors • 1 Ghost Ark • 1 Doom Scythe • 1 unit of Triarch Praetorians • 1 Triarch Stalker • 1 unit of Deathmarks • 2 units of Canoptek Wraiths None. ![]() SPECIAL RULES
Command Protocols: At the start of each of your turns choose one of the following special rules to apply to all of the non-vehicle units in this Formation: Crusader, Counter-attack, Fearless, Monster Hunters. The effects last until the start of your next turn. You cannot use this special rule if the Necron Overlord from this Formation has been removed as a casualty. Resurgence Decurion
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| The God Shackle | 10 pts |
| Edge of Eternity | 20 pts |
| Solar Thermasite | 25 pts |
| Zarathusa’s warscythe is an ancient weapon of the Mephrit Dynasty known as the Edge of Eternity. The weapon employs complex phase technology so its blade can literally ghost in and out of existence. This allows it to bypass almost all kinds of armour, vanishing just before it strikes to reappear deep inside its foe. It also allows the wielder to target his blows at specific foes, the weapon ghosting through bodyguards or other combatants to reappear at the throat of the wielder’s preferred target. |
| Range | S | AP | Type |
| - | +2 | 2 | Melee, Armourbane, Executioner (2+), Two-handed |
| The baleful energies of the twin suns saturate the Cryptus System, and even in the Magnovitrium’s dormant state those that know how can call upon the device to exploit the system’s solar bounty. As the builders of the Magnovitrium, the Necrons are masters of its secrets, Zarathusa and his trusted allies privy to the workings of the ancient device. The Solar Thermasite was created by Zarathusa’s Crypteks to harness the Magnovitrium’s ambient energies, and its bearer can use the techno-mechanical device to create a direct phase-link with the power of the twin suns. When affixed inside a weapon or the chest cavity of a Necron, it vastly enhances both destructive and defensive field technologies. |
| The God Shackle is a relic discovered by Anrakyr in the depths of the Star Hallows that allows him more exacting control of the C’tan shards in his possession. On Asphodex this would even allow the Overlord and his Crypteks to boost the power of the Burning One, rather than relying upon its innate rage alone. The only drawback of using such a device is that the tighter the leash placed around a C’tan’s neck, the more likely the creature is to rebel against it. |






