Generator Rex: Stuck in the World of Titans - The Evo's Haven

I know that some of you want my other stories but I've been having trouble cause I've had a writers block and trying to figure out where to take the story. So

Starfish EVO, Generator Rex Wiki

Cartoon Network's 'Up-Front': What Won't They Think of Next

Occupy Hong Kong, Generator Rex Wiki

Generator Rex Universe, Ben 10 Wiki

Includes Liant Evo.

Generator Rex Evo Attack Pack Rex Action Figure [Big Fat Sword BFS]

Generator Rex Lockdown (TV Episode 2010) - IMDb

Rexsalazar Stories - Wattpad

Cartoons, Games, and Other Productions Represented

Alright everyone, give me opponents for the one and only Eren