The Devourer is a rarely-seen Hive-tech air-to-air unit that requires a Greater Spire to morph from a Mutalisk. As an expensive, powerful anti-air support unit, it rarely fits the meta; Zerg rarely tech up and pursue air superiority. It deals slow single-target damage, but its attack splashes and applies a debuff called Acid Spores. They pair well with Mutalisks, whose attack bounces three times. Air units tend to cluster, making Devourers powerful in large-scale air battles, particularly against capital ships, whose heavy armor suffers from the Acid Spores.

Though faster than Guardians, they still move slowly; faster units outmaneuver them. They find most use defensively and in final battles. Their high health and armor discourage focus from enemies, and their range exceeds that of most air-to-air attacks. Their cost leans toward minerals; a breath of fresh air for a gas-starved late-game Mutalisk army.