Armies · Tyranids

Assimilation Swarm Tyranids detachment · 11th edition

What Assimilation Swarm does for Tyranids, in our own words: its rules and enhancements, any stratagems that change an attack, the units they name and how often winning lists take it.

In 56 of 236 winning Tyranids lists (24%), September – November 2026. 34% in June – August 2026. Tyranids on the Meta page ›

What its rules do

• Feed the Swarm: A Harvester regenerates a unit near it each Command phase: D3+1 wounds, or a model back (3 for a swarm).

In our own words, as the calculator applies them; see the codex for the rules.

Enhancements

The 4 enhancements Assimilation Swarm offers, with their points and who can take each, in our words.

• Regenerating Monstrosity 20 pts · for TYRANIDS model (not MONSTER): Its unit can be regenerated twice a phase.
• Instinctive Defence 15 pts · for TYRANIDS model: Fights First near a Harvester; Heroic Intervention 1 CP cheaper.
• Biophagic Flow (Aura) 10 pts · for TYRANIDS model: Harvesters near it regenerate at 9", not 6": range.
• Parasitic Biomorphology 25 pts · for TYRANIDS model: +1 Strength in melee; +1 attack in melee after a kill.

Stratagems that change an attack

The 3 stratagems of Assimilation Swarm that change the dice, in our words, as the calculator plays them.

• 1 CP: +1 to wound shooting or melee · for HARVESTER
• 2 CP: Feel No Pain 4+ when attacked · for HARVESTER
• 1 CP: Lethal Hits, critical hits on 5+ melee

Units its rules name

The army's units its rules, enhancements and stratagems name by keyword, most named first.

• B Haruspex
• A Pyrovores
• S Norn Assimilator
• A Psychophage
• B Ripper Swarms

Tyranids tier list ›