Here's brief descriptions on the contestants. They're objective is to conquer world.
Aliens have NO SUPERNATURAL ABILITIES. They just have really good technology and are really smart. Scenarios where they destroy planets are BANNED.
Dinosaurs are REALLY FREAKING STRONG! But they're really stupid too.
Ninjas are all about stealth and strategy and can easily kill weaker enemies.
Pirates can use there boats to get from one place to the other quickly and can blow crap up with there cannons
Robots are all about strength in numbers. They're guys are pretty weak but they vastly outnumber all the other armies.
Tricksters (in case you don't know) are a type of Irish fairy that are really aggressive and love pulling pranks on humans. They use there wit in battle.
Wizards mostly use spells instead of manpower. Insta-kill spells or spells that do large amount of destruction are BANNED.
These zombies are undead zombies, meaning they eat people, they don't infect people and they also can't die other then fire and disintegration. However, they can easily be contained and are not intelligent
Who would conquer the world, why, and how?