A house of cars huh? I heard cars don't fold very well, unless you're doomsday.
Also, the doomsday jump kick sweep is a common tactic of scrub doomsday players. I've done it too. There are online videos of people trolling with it. It's just a good crossover. Block on the opposite side, then block low. Then dash out before he can do it again.
You might've been playing me lol I do this when I'm just on to screw around. Nightwing is my main.
Playing: Injustice Gods Among Us (PS3); Injustice Gods Among us (Wii U) PSN ID: Call_Me_Queequeg