Not only will these get you back your instants and sorceries to make the deck go nuts, you can also get back permanents as well
The land you transform it into isnt even that good
There is much strength to be found among them
Making your opponent say things will often be reward enough. Mise This card proved very tricky

Ashcloud Phoenix Aven Cloudchaser Cinder Cloud Cloud Cover Cloud Crusader Cloud Djinn Cloud Dragon Cloud Elemental Cloud Key Cloud Manta Cloud Pirates Cloud Spirit Cloud Sprite Cloud of Darkness Cloud of Faeries Cloud's Limit Break Cloud, Ex-SOLDIER Cloud, Midgar Mercenary Cloud, Planet's Champion Cloudblazer Cloudbound Moogle Cloudchaser Eagle Cloudchaser Kestrel Cloudcrest Lake Cloudcrown Oak Cloudfin Raptor Cloudform Cloudgoat Ranger Cloudheath Drake Cloudhoof Kirin Cloudkill Cloudkin Seer Cloudpiercer Cloudpost Cloudreach Cavalry Cloudreader Sphinx Cloudsculpt Technician Cloudseeder Cloudshift Cloudshredder Sliver Cloudskate Cloudspire Captain Cloudspire Coordinator Cloudspire Skycycle Cloudsteel Kirin Cloudstone Curio Cloudthresher Death Cloud Hypnotic Cloud Krosan Cloudscraper Lifted by Clouds Lightning Cloud Meloku the Clouded Mirror Najeela, the Blade-Blossom Nyxbloom Ancient Oboro, Palace in the Clouds Oltec Cloud Guard Pride of the Clouds Riftwing Cloudskate Sea of Clouds Shepherd of the Clouds Skycloud Egg Skycloud Expanse Soratami Cloud Chariot Soratami Cloudskater Spore Cloud Stormcloud Djinn Stormcloud Spirit The Western Cloud Thundercloud Elemental Thundercloud Shaman Untaidake, the Cloud Keeper

As such, it's not something I could recommend to you if you're relatively new to the game, but if you're looking for a deck that's a little more advanced, I definitely suggest trying this one out