I’m Immortal and Can Copy Skills Without Limit

In a world where everyone chooses a class, Lu Chen awakens an immortal body. As long as he has even a breath left, he can heal himself endlessly. Everyone looks down on this class, which can't heal teammates and has no combat ability whatsoever. Little do they know he has another golden finger: by resurrecting a corpse, he can gain that person's abilities. The only cost is his own lifespan. Fortunately, Lu Chen's class perfectly makes up for this weakness. From then on, Lu Chen goes wild copying skills. Fire, ice, lightning: he can use every class's abilities.