Some of them yes. The meaning of the sun is that they are part of Soleil which is a company that produces comics or something. Some of the comic characters are portrayed here in the card game. if it has CR at the end of its name it is a collectors
The Urban Rivals team is made by lovers of all kind of Collectibles Cards Games and Trading Cards Games like: Magic the Gathering, Dominion, Vampire, Yu-Gi-Oh!, Pokemon, Wakfu TCG, Assassin Creed Recollection, Shadow Era, Kard Kombat and Might & Magic Duel of Champions.