IMO not a hard challenge at all. Even if you could only use one egg group, groups like Humanshape have access to Magmar, Electabuzz, Jynx, Machoke, and Alakazam. That's a pretty nice team right there. Egg group challenge would just be another one of those challenges that selects a set of Pokemon you can use. We're trying to stay away from that.
Wait, I'm sorry, what? When did we say we wanted to stay away from challenges that you get to choose your team? Guys, no offense, but when you say things like that, it's really discouraging. We don't need every challenge to be strikingly hard. We don't need every challenge to have Pokemon assigned by another challenger. Like I said before, we're doing a good job of keeping a good variety of difficulty with the challenges we have. Let's not take that away, please. Just because that challenge seems easy doesn't mean you have to make it easy. Just because someone might hypothetically choose that certain team if they choose Humanshape as an Egg Group doesn't mean everyone that participates in the challenge will choose an team like that.
Sorry, I just felt like that was a little rude to say we're steering clear of those types of challenges, because we're not. Just because a challenge doesn't seem "challenging" to some doesn't mean it's not to others. Please keep that in mind, and realize that you guys aren't the ones approving the challenges. I am.
/a bit irked today, sorry