This is inspired primarily by Akame ga Kiru!, Darker then Black, and Resonance of Fate.

The focus of this roleplay is on a battle between two opposing groups of assassins, one of which is in charge of protecting an important/corrupt diplomat of an evil empire from the other assassin group, which is made up of rebels against said empire. The assassins are infused with special abilities (only one per person) that gives them an edge over ordinary people but at a cost unique to the individual. This is done in a process called a tribution, where it's said that your sacrifice (tribute) is given to a sacred being who then gives the person a power in return. This being might claim someone's sight, in one example, to allow them to see in their mind visions of the future. They are baptized in a sacred pool and the exchange happens at that point. Although it's meant to be a formal ceremony, it's technically possible for the exchange to occur by less formal means. The world uses a combination of magic and technology that looks sort of like [url= http://img4.wikia.nocookie.net/__cb20130824181102/finalfantasy/images/4/45/Imperial_Vanguard_Machina.png]this[/url] and [url= http://www.hdwallpapers.in/walls/resonance_of_fate_game-HD.jpg]this[/url] for but a few examples. They rarely use just plain guns, but instead have guns that shoot magical blasts or something of that nature. 

Although the powers can vary in usefulness, in our case most of our powers should be low enough so that you could imaginably loose to a group of around 20 or so normal humans. This is about average in power. The side having to protect that diplomat can have a more powerful team leader in exchange for the extra weakness of protecting the diplomat, because once he's dead they lose the match. For the empire's assassins to win they don't have to kill all the other assassins either, but they do have to cause them to fail to kill the diplomat, which would likely only be done if most of them have been killed anyways. The empire assassins can choose the location of the battle as well. This is a team battle, so each team can have 4 or so assassins, as long as they are kept even. There are not only humans, but also some other races such as lizard-like people. Humans are the most common though. Male or female are equally common.