One of WandaVision's saddest deaths may have just been redefined thanks to Agatha All Along's finale. In the original MCU series starring Elizabeth Olsen's Scarlet Witch, Kathryn Hahn's Agatha Harkness infiltrated Wanda Maximoff's television sitcom-styled fabricated reality by pretending to be the "nosy neighbor", which allowed her to study Wanda and her power. However, Agatha's spin-off show has seemingly put a bleak WandaVision murder in a whole new light.
Agatha All Along episode 9 revealed that Agatha had a son named Nicholas, who died when he was six years old. Unable to prevent her son from being taken by Lady Death, Agatha continued her life as a coven-less witch. Across the centuries, Agatha would lure witches using the Witches' Road ballad she created with her son, before killing them by stealing their power. Keeping Harkness' past with her lost son in mind, it's possible that Agatha's investigation into Wanda's Hex was more than just wanting to take her power, and the same goes for killing Sparky, the Maximoff Family dog.
Agatha Killing Sparky Was One Of Her Worst WandaVision Crimes
Agatha All Along Made It So Much Worse
In WandaVision episode 5 when Wanda hadn't yet realized that "Agnes" was a rival witch wanting to take her power, it was revealed that Tommy and Billy Maximoff's new dog Sparky had died. Likewise, the eventual reveal that Agnes was Agatha Harkness also confirmed that Agatha was the one who killed the dog, presumably in a bid to see how Wanda would react to the introduction of a scenario involving grief and loss. That being said, the dog's murder was made even worse by Agatha All Along episode 6 confirmed that it was actually a mind-controlled Ralph Bohner who was made to kill the dog.
Agatha All Along episode 6's reveal about Ralph and Sparky is undoubtedly tragic. However, it's Agatha All Along's finale that potentially redefines the dog's murder even further. Rather than simply being a test to see how Wanda would react, it's possible that killing the dog was an even deeper test to see the full extent of the Scarlet Witch's powers in the MCU (and what it could perhaps do for Agatha herself).
Agatha's Son Might Have Motivated Her Investigation Into Wanda's Powers
Testing Wanda To See If She Could Really Resurrect The Dead
The discovery that The Vision was supposedly alive in Westview and living a happy life with Wanda Maximoff despite his death in Infinity War might have been a key reason why Agatha's interest was piqued beyond the base desire to take Wanda's power and before her confirmation that Wanda was the fabled Scarlet Witch. After all, Agatha's son died centuries in the MCU's past, and here was the love of Wanda's life seemingly back from the dead. As such, Agatha likely wanted to see for herself if Wanda did indeed possess such an incredible feat, not yet realizing that the real Vision hadn't truly been brought back.
Keeping all this in mind, killing Sparky might have also been an intentional test on Agatha's part to see if Wanda could bring back the dead. After all, it's exactly what the boys ask their mother to do once they learn their dog died: "You can fix anything Mom. Fix the dead." Likewise, Agatha seems genuinely surprised, also asking if that's something Wanda could actually do. While Wanda confirms that she can't, one has to imagine that Agatha was likely thinking about her deceased son at that moment in WandaVision episode 5.
The Power To Bring Back Loved Ones Would Have Been A Big Deal For Agatha
A Chance To Bring Nicky Back
Unable to prevent Nicholas from dying and Lady Death taking him away as a child, the ability to resurrect the dead would have been a huge deal for Agatha Harkness. As such, it's no wonder that she found Wanda and her Hex to be so intriguing, especially because Wanda was essentially an untrained witch who'd managed to create an entire reality for herself that appeared to feature her resurrected loved one. At any rate, it does seem as though Sparky's brutal murder in WandaVision was even more of a test than initially thought considering the reveals provided by Agatha All Along's finale and Harkness' own tragic history with son Nicholas Scratch.
