The bell has the power to drain the magic of others, holding it until it is released at its wielder's behest, and is also indestructible, resisting Gusty the Great's attempts to dispose of it. However, the true source of his power is his Bewitching Bell that was taken by Gusty the Great, which resulted in the loss of all his magic. The real Grogar is known in legends as the "Father of Monsters", having allegedly created dangerous beasts that plagued ancient Equestria. He also possesses a crystal ball resembling a goat's eye that allows him to observe anything from inside his lair. He demonstrates his power by using a small sample of his magic to rejuvenate Tirek into his second form, which he previously only attained after absorbing a great amount of unicorn magic. When impersonated by Discord, Grogar is presented as a wielder of incredibly powerful magic, capable of transporting creatures to and from seemingly any location, including the depths of Tartarus, and restoring King Sombra's body after it was obliterated by the Crystal Heart. Grogar creating a magical sphere to rejuvenate Tirek. Illustrations of the real Grogar appear in the book from the Canterlot Archives. When they use the bell to drain his magic, he is revealed to have been Discord in disguise all along, having pretended to be the real Grogar in a misguided effort to create a final challenge for Twilight and her friends to overcome and boost their confidence. In The Ending of the End - Part 1, Grogar acquires a new artifact of power to defeat the Mane Six, but Chrysalis, Cozy, and Tirek enact their plan to betray him with the power of the Bewitching Bell. Grogar is betrayed by his Legion of Doom. After he leaves, his allies plan to unlock the power of the Bewitching Bell soon before he returns again. When Grogar returns, he revealed to them that he has successfully located a new source of power and will set out the next day to retrieve it.
While he is gone, his allies sneak into the Canterlot Archives and steal a book so they can gain information on how to use the Bewitching Bell themselves. In The Summer Sun Setback, Grogar leaves his lair to search for another source of power to defeat Twilight and her friends, still believing his allies failed to retrieve the Bewitching Bell. Upon their return he is pleased that they have become a team, but frustrated by their apparent failure to retrieve the bell, unaware that they did retrieve it and have concealed it from him. Everhoof, believing that none of them will be able to make the trek alone. Upon returning, he finds that they have not done so, and decides to send them to recover the bell from Mt. In Frenemies, Grogar seeks to recover his stolen Bewitching Bell, and sets out on a mission to locate it while ordering his allies to learn to cooperate. In Part 2, Grogar witnesses Sombra's demise at the Mane Six's hands from his crystal ball, which he shows to the other villains as a warning to secure their loyalty to him. When Sombra objects to this alliance, Grogar makes a proposition: he can either retake the Crystal Empire on his own, or inevitably fail and suffer the consequences if he still refuses to submit. Having spent the past millennia recovering his strength and observing his fellow villains' defeats, Grogar proposes that they work together to overcome the Mane Six and conquer Equestria. As the villains explain to Cozy Glow, who is unfamiliar with Grogar, he is a legendary tyrant who once declared himself emperor of the lands eventually to be known as Equestria, creating foul monsters to wreak havoc across the land until Gusty the Great took his mystical bell and banished him, leaving him weakened. In the season nine premiere The Beginning of the End - Part 1, Grogar is revealed to be real when he summons Queen Chrysalis, Lord Tirek, Cozy Glow, and King Sombra to his underground lair. In the story, Grogar battles a group of unicorn warriors led by the titular hero. Grogar is first mentioned in the season seven episode A Flurry of Emotions as the antagonist of the children's storybook Gusty the Great, which Twilight Sparkle reads to a group of sick foals at Ponyville Hospital.