Complex sentence: Thor is informed by Penegal of the Asgard Council that several Replicator blocks rained down on Orilla and started to infest Asgard systems needed to save the minds and cloned bodies of the Asgard.
Split into simpler sentences: Thor is informed by Penegal of the Asgard Council that Replicator blocks rained down on Orilla. They infest the technology used to save the minds and cloned bodies of the Asgard.