This is the fourth iteration of the Omnath commander in Magic: The Gathering. They've all been good and worthy of inclusion, and Omnath, Locus of Creation is no exception.
The Landfall ability for Omnath, Locus of Creation is pretty spectacular, but it does stop after the fourth land drops. When that happens, though, you can bounce Omnath back to your hand, replay it, and use the ability once again. This version will also let you draw a new card every time you replay it.