Skeleton Warrior

The story starts with a warrior of good that is fighting an evil wizard or mage or warlord and is in the final battle between good and evil. The warrior is not a hero but just a normal man who has found himself face to face with the bad guy. He is alone because the rest of the army as been laid to waste. He is fighting and is thrown against a shabby tree. He has a few words with the evil one and then is impaled. The evil one puts the sword through the man’s body and the tree. The evil one leaves the sword and body as is and walks away.
An evil wizard calls upon a spirit to awaken the skeleton body of the man 100 years after his death. The body is still stuck to the tree because the world has fallen into darkness and the battlefield was never cleaned, for it is said the ground is cursed. The spirit tells the warrior to arise and serve his new master so that he may take his vengeance on the evil one that killed him. The warrior now looking like a half skeleton agrees to do what he is told and obeys his new master.

The story is about how the warrior is now on an evil wizard’s side that has brought him back to life.
He is now evil and becomes the general of the wizards armies and starts fighting the evil ones armies
It is all about how two factions of evil fight one another for power.
In the end, the wizard is about to kill the evil one with the help of the fallen hero. But as the wizard was about to lay the final blow, the warrior stabs the wizard in the back. The evil one thinks he is free but the warrior takes one of his ribs and cuts off the head of the evil one. After he puts the head into his chest and it comes back to life. The evil one is confused and asks why. The warrior tells him that the wizard said that anything within his body will stay alive forever, so the warrior wants to carry around the head for all eternity destroying everything the evil one his made.