Final answer:
There is no myth where Hector's brother creates a plan to get Athena to help the Trojans; she supported the Greeks. The question may confuse elements of various myths related to the Trojan War.
Step-by-step explanation:
The question references the historical and mythical accounts of the Trojan War, specifically the tactics involving divine intervention and the concept of fate in warfare. Hector's brother, Paris, is known for inciting the war through his abduction of Helen, but there's no substantial myth where Paris concocts a plan to get Athena's assistance, considering Athena was more often associated with the Greeks. The question might be confusing Paris' role with other myths related to Trojan characters like Laocoon, who warned against accepting the Trojan Horse and faced the wrath of Athena and Poseidon. In the ancient myth, Athena did not switch sides to assist the Trojans but was aligned with the Greeks throughout the conflict. Based on the sources provided, no clear plan from Hector's brother sways Athena to help the Trojans as she ultimately favors the Greeks, especially her chosen hero, Achilles.