Infrared Scan:	Upgrade/Evolve:
	Flyer Attack	Flyer Carapace
Cost: 200 150 Hit Points: 600 Armor Type: Heavy Armor: 1

The Spire produces the genetic code that allows the Larva to morph into the Mutalisk or split into pairs of Scourge. The Spire also serves as the upgrade facility for the Zerg aerial units, upgrading the Flyer Attack and the Flyer Carapce.