Description
Key Minds are formed by the complete assimilation of planetary ecosystems by the Flood. They are larger and hold more intelligence than a regular Gravemind. They are capable of extraordinary strategic planning, such as controlling entire battle fleets, and are more than a match for metarch-class ancillas.[1] These enormous collective consciousness probably composed of the leadership of the Flood, coordinating their efforts throughout their war with the Foreunners along with subordinate Graveminds.
List of appearances
Sources
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