Read manga: The Blade Of Evolution-Walking Alone In The Dungeon

manga
Summary:

A man awakened his healing ability but this ability is trash. During a mission in an underground dungeon with his team, all the members of his team except him were killed. This was due to the angry “last priest” who was released because of them. in this dungeon he got a sword and upgraded his powers with that sword…. What would that man do alone against all that?