Dangerous promise

The clash of clans, the birth of war and the reborn of chaos, the downfall of a kingdom and arise of the kind, a remiss of duties and responsibilities, and a promise that brings a mayhem so dangerously.

Now, let's begin. With arrow of life as the archer will fly. With a fangs could bite, as the blood flooded through the night. Between the two kinds, let's see who first could die.