What is this book about?

My Book: in this world "familiars pick their humans before birth and stay with them till they die each "area" has its set familars "born there" prehistoric and etc has a land for their own area. Each place has a colosseum people compet for the yearly battle between each group (this does not mean one place only has those people only (can intermengle) it just means they can only compete in their "area") Each character has a set weapon that they use and eventually becomes one with their fight set ( Warriors are a little diffrent they get their wepon from their familiar) Each familiar has their own "element" or ability for examples 4 raptors 1 has fire next is ice after that a metal or razor raptor, or even one that is electric your choice

3 contanents/3groups
1. Prehistoric: your characters familar has to be an extinct species 1 familar per person

2. Mythological: thats every thing from a unicorn to a werewolf etc
(phoenixes are a special cause u have to ask me before making one of them also this included gods,dragons, etc beings that or op!)

3. Warriors (evil group) they are special case they are anything from native american style to modern day gun men (special cases)

What i am asking of u?

pick 1 of the three areas
Myth
Prehistoric
Warriors
your weapon, brief discription, what familair u have, and the familar itself
If u have any question ask me i know i spell like a 2 year old and probably dont have enough info but this is my only chance for a while to write this up so xP But please i would love some characters and u guys are very creative i want to see what your mind can cook up!