Unending Swarm: The 11th-Edition Tyranids Horde Detachment

When an enemy unit finishes shooting and kills one or more models from your Endless Multitude units (Termagants, Hormagaunts and the like), each such unit rolls a D6 and makes a Surge move up to that many inches toward the nearest enemy — even into Engagement Range. Battle-shocked units can't Surge, so keep your synapse web intact. The effect is brilliant for a horde: the shooting that's meant to thin your swarm instead hurls it forward, closing distance and contesting ground you'd otherwise lose.

• Unending Waves (once per battle) — a destroyed Endless Multitude unit returns to Strategic Reserves at full strength. Recycle a key block to re-contest an objective late.
• Synaptic Goading (reactive) — re-roll a Surge move and redirect it toward the nearest objective instead of the nearest enemy. Turns incoming fire into scoring.
• Swarming Masses (Shooting/Fight) — a unit gains Sustained Hits 1, and units of 15+ models score Critical Hits on 5+. Your big-squad damage spike.
• Bounding Advance (Movement) — add a flat 6" when Advancing instead of rolling.
• Teeming Masses (defensive) — -1 to enemy Hit rolls against a unit.
• Preservation Imperative (defensive) — a unit counts as under five models versus Blast, denying bonus attacks.

• Relentless Hunger — +2" Move for the bearer's unit, pushing the horde up faster.
• Naturalised Camouflage — up to three nearby Endless Multitude units gain Benefit of Cover for the battle round.
• Adrenalised Onslaught — the bearer's unit moves an extra 3" when Piling In or Consolidating, spreading the melee.
• Piercing Talons — the bearer's Critical Wounds improve AP by 1.

(Points live in the app; confirm there.)

• Termagants — the cheap Endless Multitude battleline; big squads trigger Surge moves and Swarming Masses' 15+-model Crit bonus.
• Hormagaunts — fast melee gaunts that Surge into Engagement Range off casualties, closing for free.
• Gargoyles — mobile flying gaunts for objective play.
• Synapse support (Neurotyrant, Winged Tyranid Prime) — keeps hordes out of Battle-shock so they can keep Surging, and carries the enhancements.

Take it when your collection is built on big blocks of gaunts and you want to grind through attrition, flood the midboard, and turn your own losses into forward momentum and objective pressure. It rewards model count and board coverage over elite quality. At 2 DP it leaves 1 DP for a support like Warrior Bioform Onslaught or Ambush Predators.

Sample gameplan: deploy wide with multiple 15-20 model gaunt blocks plus synapse. Push everything up turn one; when the opponent shoots your screens, Surge (redirected to objectives with Synaptic Goading) to claim ground. Bounding Advance guarantees long moves; Swarming Masses turns big squads into a Sustained-Hits engine in combat. When a key block dies, Unending Waves recycles it into Reserves to arrive fresh — out-attrition the opponent over five turns.