- This article is for the Legacy of the Void multiplayer version. For the previous expansions' multiplayer version, see Greater Spire (Wings of Liberty and Heart of the Swarm).
The Greater Spire is one of two Zerg Tech Tree buildings that are available after the completion of Hive. After Hive is completed, a Zerg player may choose to upgrade their Spire to a Greater Spire. After the Greater Spire is done, the Zerg player has the ability to create the Brood Lord from a Corruptor.
Flyer Attacks Upgrades
These upgrades affect the following units: Brood Lord, Corruptor, Mutalisk
Flyer Carapace Upgrades
These upgrades affect the following units: Brood Lord, Corruptor, Mutalisk, Overlord, Overseer