Well, I mean both Moan of the Unhallowed and Gisa's Bidding have existed for some time.

I personally went with Out of the Pit so it isn't a strictly worse version of either of those cards - even if it made Zombie tokens. It did lose the for 2 2/2s thing though, but that's more of a trick than anything.

Yeah that's my point, we've gotten numerous card that make two zombies, but they've always got an extra ability.

Coming in tapped would definitely interfere with their usefulness (given this set really likes to tap creatures), but it's definitely an option should this card need to be nerfed.

Still, I don't find that surprising at all. There are many forces that pressure you to pile more stuff onto your cards. In the cases of those two it seems they were fitting effects to slap their "mechanic of the day" onto given that the effect's complexity quota is so low. Making a common that's a strictly worse of its could-be uncommon equivalent isn't particularly exciting prospect for me either.

At NGA there's a thread with a similar theme that got a surprising amount of "submissions".

http://forum.nogoblinsallowed.com/viewtopic.php?f=17&t=18729

EDIT: Btw, zombies aren't exactly the first thing that comes to mind when I think of "Comic book" setting. Curiously (since that would also be similar to my card eve if the type is pretty much retired), Minions might be more fitting though I don't see anything that would care about that particular creature type in the set.

Minions are totally better. I'll make that swap when I figure out changing the flavor of the (one) other zombie token card too.