It might be ok....
The rules say as long as you don't have any unnecessarily gory or drawn out fight scenes I think..
As Bob's spier pierced through his body, Fred let out a yelp in agonizing pain. He looked down and watched as blood flowed quickly from his side. Bob laughed evily with glee. Frederick gasped. His eyes rolled back into his head as he fell to the floor, dead.
A better way to say it might be,
Bob drove his spear quickly through Fred's side. In shock, Frederick cast his eyes downward at the wound, and fell to the floor, dead.