Rescue plainly sucks on ELO, I tried every single combination I could and couldn't get much past 1250...their best cards are perma-banned, and they suffer a lot against SoA and SoB (and if you see that GHEIST, Piranas and Nightmare are used quite a lot, you have a big problem here).
With those 17k have you can build yourself a pretty solid deck, that can easily get to 1300+
Something like: Jeto, Noodile, Rico, Yookie, Sigma, Jautya, Uranus, Petra
(Just out of my head, some cards I always see when 1300)
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.