Guy never actually died, but he very nearly did after opening the Eighth Gate of Death during the battle with Ten Tails Jinchuuriki Madara.
In terms of power, Isshiki is far superior to both Sasuke and Naruto in their Six Paths forms. He was able to beat Naruto Uzumaki in hand-to-hand combat, meaning his skills are well above that of Might Guy as well.
Once on Zanibar, Darth Maul received yet another pair of legs in Season 5, Episode 14. Medical droids replaced the talon legs with mechanical legs that were more human-like. These new legs returned him to his original height and made him look closer to how he had before the events in The Phantom Menace.
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.
AjaxDeadpool's main target is Ajax, the man that gave him his powers and also horribly disfigured him. The vans all come crashing to the end of the bridge, where one thug's head is sliced off with a chain, and another one gets gorily splattered against a sign on the highway.