No! Don't listen to Battery! Rescue are completely unplayable!!
...Actually he's right but I would much rather never see them again. But if you MUST, my personal recommendation would be to run Cliff over Sledg. Unless you're playing Pussycats, you just can't DR Cliff in Revenge... At 6 + 12, he is about as good as an 8 power if his bonus isn't blocked... And he can KO with a lot of pesky cards that might get through even if you old them. Cliff was what made Rescue fearsome, and somehow when Sledg came back, everyone forgot how good he was.
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.