They're a part of Crazy Craft, thanks to the Superheroes Unlimited Mod!
Here is a list of some of the most helpful Superheroes around the house!
The Hulk: Fairly easy to make, but more than its fair share of awesome, is the Hulk suit! It gives you some Hulk strength, of course, which is nice, but this is what we're talkin' about... It gives you, jump boost 100 and speed boost 1000! Well, not THAT much, but, well, just try sprint-jumping... But watch out for suffocation in walls!
Deadpool: Nice, handy speed, but see that regen? That regen 10000? Ok. You're almost immortal with the Deadpool suit!
Spider-Man: Spider man, Spider man... Does whatever a spider can... Climb up walls? Yes, he can! Shoot Webs? Yes, he can! Pull himself around with a string grappling hook? Yes, he can! Shoot fireballs? No, he can't... He's just a spider! =p
Batman: The Batman suit isn't all that impressive, but the Baterang that you can make is! Imagine your working on your house and there's a Zombie running towards you. Fling this thing, it one-hits the zombie, and returns back to you! Isn't that awesome?
Iron Man: I believe I can fly!!! Well, you don't have to believe. With the Iron Man set, you CAN! And you can shoot little bullets at everyone! Awesome, right?
Blackpanther: Has claws & shoots fireballs.