Deadpool's superpower is an accelerated healing factor that lets him survive almost any physical injury. In the first movie, he quickly recovers from broken bones, gunshot wounds and even manages to regrow a missing hand.

Can Deadpool be killed?

He is still alive 800 years in the future when the new X-Force encounters him. When Thanos found out that Deadpool and Mistress Death share a romantic relationship between the two of them, he cursed Deadpool with immortality, meaning that he can't die by any means.

What are Deadpool's strengths?

Deadpool possesses great-though-not-unnatural, physical strength. He does possesses the strength of an Olympic-level weightlifter. While the exact amount of weight he can lift isn't known, he is able to lift at least 420 lbs. but no more than 800 lbs.