Kill Team Preview Reveals Celestian Insidiants: Sisters' Anti-Psyker Inspiration and Martyrdom

The Adepta Sororitas Celestian Insidiants arrive in the Kill Team: Shadowhunt box as a purpose-built anti-psyker squad that reshapes how Sisters players approach the new boxed set. The team’s kit centers on hard counters to psychic warfare: heavy maces fitted with null-field generators, condemnor bolt pistols, and spiritual talismans that blunt enemy discipline and power. Mechanically the Insidiants bring three headline features that matter for list building and tactics.

First, the Inspiration mechanic grants the Severe weapon rule to Inspired operatives after they either spend Charges or neutralize high-wound targets. That turns otherwise routine melees and pistols into high-damage threats against armoured or resilient foes. Second, Martyrdom converts the incapacitation of an Inspired operative into a Benediction that benefits an ally. Benedictions are selectable effects and include healing, extra armor penetration, Ceaseless on weapons, or a free localized movement. This creates a playstyle that rewards sacrificial trades and careful sequencing, where giving up a model can yield a decisive tactical edge. Third, a grouped suite called Weapons of the Witch Hunters bundles the Insidiants’ anti-psychic tools into a coherent package that reduces enemy psychic activity and forces psyker-heavy teams to change approach.

These mechanics interact strongly with Shadowhunt’s Descent board design, which features an upper-lower layout and tighter sightlines. Visibility and choke points magnify the value of null-field effects and force the Insidiants into compact formations to maximize Benediction reach. On the descent-style map, controlling verticality becomes a double-edged sword: upper-level cover can shelter psykers, but close-quarters engagements on ramps and platforms let Insidiants trigger Inspiration and execute Martyrdom with predictable casualty chains. Plan to use terrain to limit enemy psychic lines of fire while staging Inspired operatives where their eventual loss will give the team the best Benediction payoff.

For competitive and casual players alike, the Insidiants add a reliable counter to factions that lean on psychic toolbox and mortal wounds. You will need to rethink deployment and casualty management; the team rewards aggressive, focused actions and penalizes scattershot play. List construction now has space for sacrificial specialists whose value is measured by the cascade of Benedictions they unlock.

Expect lists to adapt quickly as players explore which Benedictions produce the most swingy outcomes and how Weapons of the Witch Hunters stack up against the meta. Test the Celestian Insidiants in Shadowhunt matches to learn ideal positions and timing, then tune loadouts to exploit their anti-psyker niche.