The truncated Game of Thrones finale season is infamous for Daenerys Targaryen's descent into madness. Game of Thrones season 8, episode 4 "The Last of the Starks" marks a tipping point in her arc. She bid her oldest friend and confidant, Ser Jorah Mormont the last goodbye, the Northerners turned out to be a thankless bunch, disregarding the sacrifices she made in the Battle of Winterfell. Daenerys had discovered the truth about Jon's parentage, Euron Greyjoy took out her dragon, Rhaegal using Scorpion darts, she grew increasingly suspicious of Lord Varys, and her enemies in the capital, Cersei and Euron executed Missandei. The cascading effect of these unforeseen events pointed towards one thing - that Daenerys hadn't prepared herself for the worst in the war for Westeros.
After burning Lord Varys alive with Drogon's fire, Daenerys briefed the chosen commander of the Unsullied, Grey Worm, saying, "Wait for me outside the city, you will know when it's time." She rejected Tyrion Lannister's advice and burned King's Landing to the ground. Her final engagement in the war for Westeros known as the Battle of King's Landing took place in Game of Thrones season 8, episode 5 "The Bells" and it saw the mass burning of the commoners and armies on the ground. Daenerys became the least merciful character on Game of Thrones and queen of the ashes in the postwar period. Her commander Grey Worm proceeded to execute every last of her enemies, including prisoners of war, and her messiah complex got worse.
The Assassination Of Queen Daenerys Targaryen
King's Landing was reduced to rubble in the Game of Thrones finale, "The Iron Throne." Drogon screeched, and the Unsullied and Dothraki cheered for the new Queen of the Seven Kingdoms. Daenerys' victory was anything like previous victories in Essos, and her speech cast a pall on people with some semblance of reason. Tyrion Lannister confronted her about slaughtering the city, and removed his Hand of the Queen badge as a mark of resignation. Daenerys charged him with treason and had him incarcerated. As she concluded her victory address, Arya warned Jon to be wary of his new Queen and the fact that their sister, Sansa wouldn't bow down to the fury of fire and blood, come what may.
Daenerys' actions had a series of consequences, and her former advisors lost faith in her one by one. The list included Jon Snow, and quite obviously, Tyrion Lannister. The duo's conversation in a prison cell had a dramatic impact. Tyrion convinced Jon to assassinate Daenerys in the name of justice. "I betrayed my Queen... And I'd do it again now that I've seen what I've seen," remarked Tyrion. While Jon maintained he couldn't justify what happened, Tyrion reminded him Daenerys' military operations had just begun and she wasn't done fighting. Tyrion remained critical of Daenerys' wars of liberation in Slaver's Bay in earlier seasons of Game of Thrones and King's Landing in the last. He said it was high time her ambitious warfare came to an end. In the end, the former Hand reminded Jon that his sisters would be in danger as long as the Mad Queen remained in power.
When Jon finally saw Daenerys in the ruins of the throne room, he convinced her to pardon Tyrion, the prisoners of war, and everyone else who collaborated against her. She declined, saying she wouldn't hide behind "small mercies" but continue with her aggressive pursuit of peace. Jon and Daenerys' last conversation in the Game of Thrones finale was about the power of mercy. Daenerys was intent on robbing people of their right to choose, and Jon could see she was overtaken by madness. Knowing people had suffered enough, he proceeded to plunge a dagger into her heart while proclaiming her his Queen one last time. As he cradled her corpse, Drogon appeared on the scene. He screeched in mourning and breathed fire at the bane of it all - the Iron Throne.
Drogon Destroyed The Iron Throne
Earlier, while making his way to the throne room, Jon came face-to-face with Drogon. The beast emerged from under an enormous pile of ashes, sneaked up on him but let his guard down. This scene conveyed Drogon trusted Jon to a considerable extent, most likely next to the Mother of Dragons. Drogon knew the destruction that Daenerys' pursuit of the Iron Throne has caused. He'd lost his brothers in the war, and he was wounded just like everyone else around him. But the real reason he destroyed the Iron Throne was revealed in the script of the Game of Thrones finale episode. It reads:
“He looks down at Jon. We see the fire build up in his throat. Jon sees it as well. He prepares to die. But the blast is not for him. Drogon wants to burn the world but he will not kill Jon. He breathes fire on the back wall, blasting down what remains of the great red blocks of stone. We look over Jon's shoulder as the fire sweeps toward the throne — not the target of Drogon's wrath, just a dumb bystander caught up in the conflagration.”
Turns out, the Iron Throne accidentally became a target of Drogon's ire. When nothing was left of the majestic seat, Drogon scooped up Daenerys' body and flew away with it. He nipped the evil in the bud before a new era ushered in the history of the Seven Kingdoms. The Iron Throne for centuries symbolized absolute power and authority, and those who took it became sovereign on Westerosi soil. Such was the allure of the Iron Throne in Game of Thrones, that it turned kin against kin, friend against friend, and lover against lover. The evil seat was gone, thanks to Drogon, and a new dawn began in Westeros.