Yooooo deadass thank god for wikepedia lol Shoutout to Zachary Quinto (Sylar)
Sylar's base power, as described by Chandra Suresh, is "intuitive aptitude", the ability to innately understand and manipulate patterns within complex systems, which initially manifests as a talent for repairing timepieces. As revealed in "One of Us, One of Them", this power comes with a nearly insatiable hunger for "understanding", which, in Sylar's case, specifically refers to craving the powers of others, driving him to kill other superpowered humans to understand their powers and make them his own. Despite the strength of this hunger, two episodes have shown that it can be resisted or satiated: in the alternate future of "Five Years Gone", Sylar has taken on so many abilities that he simply desires to get rid of all of his potential "competition" (other superhumans, to be exact); in the future of "I Am Become Death", he has resumed his identity as Gabriel Gray and denies his hunger for the sake of his son. In "Once Upon a Time in Texas" it is revealed that Sylar can also identify deformities in people such as Charlie's blood clot and Hiro's brain tumor.
Sylar's intuitive aptitude allows him to deduce the workings of the powers of others; by examining the brain of his victim, he is able to find the brain's connection to the ability, and once he finds said connection, he can immediately replicate the power himself. However, he cannot acquire an ability from a dead person, even if their brains are intact. In "Fallout", Noah Bennet theorizes that Sylar's additional powers are a product of using foreign DNA to alter his own which, as a side-effect, has driven him insane.
Of all the powers Sylar has acquired, the most prominently used is telekinesis, which is the first power he took. In contrast to the limited abilities Brian Davis displayed, Sylar's skills are far more advanced; he exhibits both fine control (precisely cutting open the skulls of his victims) and sheer force (flipping a police van), can enhance his own strength and durability to superhuman levels, and can control a person's motor skills in a manner similar to Eric Doyle's puppet mastery. Tests done on Sylar by Bennet's associate Hank show no overt signs of powers other than telekinesis; while their tests show that he possesses other powers, they are unable to identify what they are. In "The Hard Part", Sylar demonstrates he can use at least two of his acquired abilities at the same time.