Use the subtypes of the returned land as it last existed on the battlefield to determine whether or not you must discard a card
Exxaxl: I normally like drain effects quite a bit, but I was kind of underwhelmed by Queza, Augur of Agonies when I first saw her because she targets one opponent at a time instead of each opponent
Imposing Grandeur I originally overlooked Imposing Grandeur since Crimson Vow and its Commander decks had a million red wheel effects for some reason
Sacrifice after III.) I Crescent Fang Search your library for a basic land card, put it onto the battlefield tapped, then shuffle
Seaside Haven, Animal Sanctuary, and Airborne Aid are lands that give you a benefit if youre packing these feathered friends
This includes colorless cards, though colorless card draw, which often comes from artifacts, can be perilous