Silas wants the cure to cure himself. He uses the ability to create illusions (the source of this ability is unknown, as he can supposedly no longer perform magic) to take the form of Shane as he left his tomb. He took Bonnie with him, healing her and pretending to be Shane to earn her trust.
Back at Salvatore central, Silas is ready to destroy the other side so he doesn't get stuck there and he can die and reunite with his love Amara. He promises Elena he'll bring Bonnie, but first he has to find the anchor and destroy it.
Silas was one of the most powerful witches amongst the group who desired immortality, wanting to live for eternity, and wanted to create a spell for immortality.
Silas returns to Mary and Warren's farm after a period of absence, maintaining that he wants to work. As Mary tells Warren, it is plain to her that after having seen and talked to Silas, he is too worn out to do any work. It seems, instead, that Silas has come back to the farm not to work but to die.
Further complicating matters was Silas's reappearance. He still wanted the vampire Cure in The Vampire Diaries, and the only dose of it in the world was running through Katherine's veins. Silas transferred the Cure to himself by drinking all of Katherine's blood, becoming mortal once again.
Klaus is far more powerful than Silas because he's physically the second most powerful thing walking the planet (behind the Beast of the prophecy). Silas wasn't even as strong as a vampire, he's barely stronger than a human.
Silas is the main antagonist of season four and a major antagonist in season five. He was a very powerful warlock who became a true immortal, predating the Mikealson family by over 1,000 years. Silas was the most powerful immortal being and supernatural being in the series universe.
As we know, the originals are 1000 years old and we're born sometime around the viking age. In the flashback scenes, we see that Silas was around in Ancient Greek or the biblical times, making Silas much older then Finn, who was the oldest original.
There are three known doppelgänger lines which stem from Silas, Amara, and Ismene, respectively. Known doppelgängers of Silas are Stefan Salvatore and Tom Avery; known doppelgängers of Amara are Tatia, Katerina Petrova, and Elena Gilbert; and known doppelgängers of Ismene are Daria, Adyelya Petrova, and Clara Gilbert.
Silas was originally a witch before he performed the immortality spell, so when he took the cure his immortality was gone and he was back to his original witch form, and witches are supernatural beings.
White Wolf Ending: Laura Kills Silas and Both Travis and Ryan Survive - The Curse is Lifted. This ending has all three characters surviving, along with Caleb returning to human form; however, if he's trapped in the freezer, he'll succumb to the freezing temperatures before he's found.
Silas became the big bad villain in Seasons 4 and 5 of The Vampire Diaries. But why was this first immortal truly bad?
William Dane: William Dane is Silas's former best friend at Lantern Yard. At the start of the novel, William betrays Silas by framing him for theft and marrying Silas's fiancée Sarah.
In the woods, Shane explains to Bonnie that Silas lost the ability to do magic when he became immortal, so he'll need Bonnie to do his work for him, using the power of three massacres of 12.
His faith in the ultra-conservative Opus Dei allows him to inflict violence upon himself (as well as, you know, to others) as a purging mechanism.
Silas leaves to find Stefan and Amara. Silas finds Amara tied on a tree and while he tries to untie her, she begs him to kill her. Stefan appears and they start fighting, with Stefan finally stabbing him. Silas dies and Amara stabs herself.
Distant Family, Silas is Damon's distant paternal ancestor, Former Allies/Enemies, They worked together to defeat Qetsiyah.
Silas's physical strength is equal or less than that of the Supernatural Hunters of the Brotherhood of the Five but the rest of his physical attributes, including his strength, are inferior to vampires, including hybrids and Original vampires.
Almost an entire generation of the family was wiped out by Niklaus Mikaelson during 15th Century A.D. in revenge for Katerina's sabotage of his plan to break the curse that had been placed on him by his own mother over half a century before.
Elijah Mikaelson is the second-oldest of the Original vampire brothers (and the third-born child of Mikael and Esther).
Henrik Mikaelson: Henrik was the last and seventh born child of Mikael and Esther, the younger brother of Freya, Finn, Elijah, Kol and Rebekah and the younger half-brother of Niklaus. Henrik was the youngest sibling and child of the Original family.
The Mikaelson family are also commonly known as "the Originals" due to the fact that they are the first vampires ever to exist. Klaus is the son of a witch and a werewolf, and his quest to unleash his hybrid nature was detailed in The Vampire Diaries.
This time, we've learned that we're finally going to get to see the true face of the evil Silas character in the upcoming episode 19 titled, "Pictures Of You." In addition to that, dead Jeremy will also be making a return appearance!
However, Silas had the ability to compel witches as demonstrated when he did so to Qetsiyah and Bonnie. Hybrids can be compelled by Original vampires due to their vampire side. Compulsion doesn't work if the victim is on vervain.
Silas was deeply and passionately in love with his true love and soulmate; a young lady named Amara (who is the original the progenitor of the Petrova doppelgänger bloodline).