Tyland Lannister subtly sets up one of the most devastating moments in House of the Dragon, which takes place at the Baratheons’ home in Storm’s End.
House of the Dragon has finally reached the Targaryen civil war, with season 1 set to leave off on a particularly tragic event.
House of the Dragon episode 9 emphasizes that House Baratheon could sway to either side, with the power of their armies and geographical advantage being important for victory.
The blacks of Rhaenyra will send her son Lucerys Velaryon to Storm's End, while the greens of Aegon will send Aemond Targaryen.
George R.R. Martin’s Fire & Blood book reveals that the two face off at Storm’s End, with Aemond drawing his sword and verbally taunting Lucerys.
Luke, who had previously dismissed Aemond's provocations by insisting that he had just been sent as an emissary, fled on his dragon Arrax, but Aemond and Vhagar chased him over Shipbreaker Bay.
There was no justification for attacking his nephew given that Aemond had just secured Storm's End's support for the greens over the blacks.
Aemond was determined to maintain his authority over Rhaenyra's sons, especially Luke, who removed Aemond's eye during a battle in House of the Dragon episode 7, even though the war had already started.
Since claiming Vhagar, Aemond had become more violent and vicious, and he felt obligated to defend himself from everyone who dared to make fun of or neglect him.