I'm always in the market for playable blue cards that return lands to your hand. For those of us with heavy lands themes, blue's niche is returning lands to hand to generate repeated landfall triggers, or discard to Molten Vortex or Flame Jab, etc. The problem is that most of the cards that do this aren't very good (raise a glass to all the OTHER Moonfolk out there).
Outside of that synergy, I'd agree this card doesn't seem particularly fun. And testing may reveal it's not fun with those synergies either.
Have you gotten some results with Overburden? I just added it to my cube, but it wasn't in the pool during our first draft, which is sad, because I drafted a sweet landfall deck, where it would've been nice.