[@Aeternum] Well, the Knights would be fighting creatures that come in from tears in the universe's shell. Those creatures don't belong on the Earth, and they cause cataclysmic occurrences such as deadly car crashes, mass murders, and several 'natural' occurrences such as unnaturally strong hurricanes or tornadoes. There are many more things that stem from these monsters, but all you really need to know right now si that the Chroma Knights are the only thing keeping these monsters from completely destroying the Earth. 

Of course, this information is kept from the general public. If a Chroma Knight tells a regular human about their mission- let's just say something very bad will happen to them. Namely death. There are 8 divisions each with specific powers. 

First is the Asclepians. They are able to heal others with their power, along with themselves. Their only limit is death. Once someone is dead it's over.

Second are the Arrows. They have enhanced accuracy with things like bow and arrows and throwing knives. They also have the addition of their attacks being longer range. 

Next are the Butterflies. They can create illusions such as to magically disguise themselves or divert the enemy's attention from themselves or others. 

Fourth are the Cartesians. They have the powers of telekinesis, to communicate telepathically, see events going on in other places and to teleport. 

The Hammers are next. They have enhanced strength and endurance. Their special power is a short-ranged yet powerful magical blast.

6th are the Croscopes. They can make objects smaller or larger for periods of time. 

The Shields can deflect attacks, bounce attacks back, and bisect objects using a magical force-field. 

Last, but certainly not least, are the Temporeans. They can see past and future events, and even stop, manipulate, or travel through time. Yep, that's right. You heard me right. They can travel through time. Only if they're good though. 

Oh, and another thing! You have to design your own combat outfit (or find an image online) that your character will transform into during combat.