@Venchi: Basically what Rin said. I saw that the picture you used was a Worm and wanted to check if the character himself was one or not. That sounds fine though.

@Revans: I'm sorry, but I don't think I can accept this character. You said it's got 2 minds fighting for control over it, but...aside from saying the monster's evil, you didn't really say anything about either of them. 

With the powers, you've said it has the ability to copy other Riders' abilities, but that's way too vague for me to accept it. Does it just need to see them transform? Touch their Driver? Watch them in their Rider form for a certain period of time? Absorb them like the people in the backstory? 

Is the 3 years of age since the driver was built or is it meant to have been on the "campaign of eradication" for that long? Since...I can't really see the latter working out too well, given that Riders tend to react to that sort of thing.

And the abilities field would be for a character's non-Rider abilities.