Yeah, this card... exists. It's not actually a terrible card per se, but it's just so situational that it comes off as a really bad card. Regular lands can actually deal a ton of damage depending on what's going on (see Natural Affinity or Koth of the Hammer) but again, it's really situational. There are some man-lands that do see a lot of play, but this card is sideboard material at best. The main failure of this card is not actually the fault of the card itself; this card is bad because you probably aren't going to be hit with a lot of lands.
Pros: Protects against man-lands or animated lands
Cons: Land damage is fairly few and far between