If you make sure to put Harus Earthbend and Emerias landfall trigger on top of the stack, you can make the Courtyard into a 1/1 before it gets sacrificed
Farseek, Nature's Lore, and Three Visits can fetch up non-basics and/or untapped lands, which are huge improvements over actual Rampant Growth
Still, for decks that care about fast, reliable mana across multiple colors, it's proving to be well worth the cost
At the beginning of the upkeep of enchanted creature's controller, remove a sleep counter from that creature
Blues entry on that list, surprisingly, targeted lands and could be used in concert with cards such as Rising Waters and Tangle Wire to completely ice out a foe from tapping a land for mana for multiple turns in a row
You can also divide up by rarity I tend to separate out the rares and mythic rares from the commons and uncommons, but I dont split otherwise