The 89th Zetan Basilisks – Premise, Forces, Conversion

I hit up a friend today to see if he had any extra unassembled 40k stuff lying around he wanted to sell. He informed me one of the things he has is a Valkyrie (woohoo!) and some random old school Cadian Stormtroopers (even more woohoo!). In the timeline of what forces were going to be added when, the 89th Zetan Basilisks were going to be nearly last, being a small special forces squad of Militarum Tempestus units.

I’m thinking about moving them forward to the second set of units though with my acquisition of a Valkyrie.


The 89th Zetan Basilisks are a Militarum Tempestus regiment based on forge world Gorgonum and most of their recruits are either stolen or orphaned from high ranking Gorgonum households. Their forces primarily serve the Adeptus Mechanicus Magos of Gorgonum and their whims, and are typically deployed alongside Clan Khoraak as a “gift” from the Magos to maintain standing relations with the Clan on extensive operations.

The Tempestor Prime of the Basilisks is Commander Rhandor Corellius, a hardened veteran whose tour of service is very extensive. Corellius led the former 88th Zetan Basilisks on a suicide mission decades previously that led to their destruction and survival of only himself. He now keeps a collection of servo/cyber skulls made from the remaining skulls of his former comrades-in-arms in order to remember them and continue fighting alongside them.

The Basilisks pride themselves on independence and strength of will/fortitude. Their primary strategy is to drop behind enemy lines, fortify locations, and hold out to provide distractions and damage to enemy forces and raid supply lines. Because of this, their individual squads each have a communications officer and a medical officer, as well as a dedicated Valkyrie instead of a usual command structure.


  • Tempestor Prime Rhandor Corellius
    • Memoriam Skulls
  • Tempestor Ghallic Fordrum and Fire Team Unum
    • Medical Officer
    • Communications Officer
  • Tempestor Hallwart Mallus and Fire Team Duo
    • Medical Officer
    • Communications Officer
  • Tempestor Fharyn Mordan and Heavy Weapons Team Tria
    • Lascannon Battery
  • Tempestor Illyn Hollar and Heavy Weapons Team Quattuor
    • Lascannon Battery
  • Tauros AV I
  • Valkyrie I (Unum, Duo)
  • Valkyrie II (Tauros AV I)
  • Valkyrie III (Rhandor, Tria, Quattuor)


There’s a lot of conversion options with Tempestus. The first change I’ll be making is to use Cadian style body armor instead of the Tempestus chestpieces. While I like the Tempestus Torsos, the Cadian ones just look awesome for a special forces unit.

Heavy Weapons Teams are not typically part of Tempestus, but fit thematically and would look awesome. So I’m throwing two Lascannon Battery teams on there with relevant Tempestus bits to make them look fitting.

I think I can convert a custom Tauros Assault Vehicle from a Land Speeder and some extra bits/wheels. It’ll take some work but I think it’ll be doable, I’ve seen examples all over the internet.

Each Fire Team also has a communications officer and medic instead of relying on a command squad for having just one. Will have to order an extra set of gear for him and the medics.

The Tempestor Prime will be fun to convert, I want him to be imposing, gritty, battle hardened. He’ll actually have a squad of servo skulls with bolters or such on them as well which I think will look awesome if done right.


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