The Hiveminds intentions behind designing hivefleet Kronos

• 8th Ed Codex [Tyranid]:

"Hive Fleet Kronos appears to be the Hive Mind's first solution. This new terror is tracing a foreward path along the line of the Great Rift. Tendrils of Leviathan have diverted from their original course, leaving behind defenseless worlds for Kronos to consume. It uses such offerings well. The nascent hive fleet appears to be zeroing in on areas of intense psychic activity that threaten to tear the breach between realities wider. Scores of planets conquered by Chaos-worshipping cultists and warp-spawned abominations have fallen in its path, and Kronos has obliterated them all, like a maggot eating the corruption from an infected wound."

• 9th Ed Codex [Tyranid]:

"In this way, Kronos' tendrils have slowly worked their way along the fringes of the Great Rift, focusing on Chaos-corrupted systems with the potential to threaten the progress of other hive fleets. They lash out like the stinger of some monstrous beast before withdrawing to regather their strength."