What does Heart of the Swarm do?

Heart of the Swarm TFT Set 17 Augment Effect (Updated August 2026)

Heart of the Swarm augment for Teamfight Tactics Set 17. Full effect, rarity, similar augments and the strongest comps of the set.

Last UpdatedSeptember 20, 2026

Heart of the Swarm

Patch 16.16 · Set 17 · Teamfight Tactics

All 3-star champions now count towards Swarmling power. At level 9, while fielding 6 unique 3-star champions, Primordians summon the Apex Primordian. Gain 3 Primordian Champions and 2 Tiny Duplicators. Unique 3-Star Champions Fielded: / 6 Levels: / 9

Level Requirement: 9
Num3 Star Units: 6

Level Requirement9Num3 Star Units6

RarityPrismaticTypeAugment

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All augments of Set 17

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Set 17 Overview

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Frequently asked questions

What does Heart of the Swarm do?: All 3-star champions now count towards Swarmling power. At level 9, while fielding 6 unique 3-star champions, Primordians summon the Apex Primordian. Gain 3 Primordian Champions and 2 Tiny Duplicators. Unique 3-Star Champions Fielded: / 6 Levels: / 9

How the Heart of the Swarm page is built

Where the data comes from

The Heart of the Swarm page is built from game data for the current Teamfight Tactics set. The effect text, rarity and the stages where the augment is offered are refreshed with every patch. When a tier letter is shown, it tells how strong Heart of the Swarm is in the current meta.

What this page shows

The card at the top shows the full effect of Heart of the Swarm, its tier, rarity, type and the stages where you can pick it. Right below are similar augments of the same type, stronger ones first, so you can see what to take instead. Further down are the strongest comps, items and traits of the set.

Augment strength depends on your board, stage and economy, so treat the tier as a guide and check the effect against the comp you are playing.

All comps