There's one card of each set, so strap yourself in, this will be a short one: Alpha: 3x Air Elemental (PL - GD) Unlimited: 7x Icy Manipulator (PL) And we are on to our next category, which is

Mime Sableye Spoink Grumpig Lunatone Shuppet Banette Oricorio Oricorio Cutiefly Ribombee Comfey Sandygast Palossand Mimikyu Tapu Lele Cosmog Cosmoem Lunala ex Necrozma Cubone Makuhita Hariyama Solrock Drilbur Timburr Gurdurr Conkeldurr Crabrawler Rockruff Rockruff Lycanroc Lycanroc Mudbray Mudsdale Passimian ex Minior Alolan Rattata Alolan Raticate Alolan Meowth Alolan Persian Alolan Grimer Alolan Muk ex Absol Trubbish Garbodor Mareanie Toxapex Alolan Diglett Alolan Dugtrio Excadrill Escavalier Klefki Solgaleo ex Magearna Drampa Jangmo-o Hakamo-o Kommo-o Tauros Skitty Delcatty Fletchling Hawlucha Pikipek Trumbeak Toucannon Yungoos Gumshoos Stufful Bewear Oranguru Komala Big Malasada Fishing Net Rare Candy Rotom Dex Poison Barb Leaf Cape Acerola Ilima Kiawe Guzma Lana Sophocles Mallow Lillie Alolan Exeggutor (art rare) Morelull (art rare) Tsareena (art rare) Tapu Bulu (art rare) Alolan Marowak (art rare) Turtonator (art rare) Alolan Vulpix (art rare) Pyukumuku (art rare) Tapu Fini (art rare) Oricorio (art rare) Tapu Koko (art rare) Cutiefly (art rare) Comfey (art rare) Sandygast (art rare) Tapu Lele (art rare) Cosmog (art rare) Rockruff (art rare) Mudsdale (art rare) Minior (art rare) Magearna (art rare) Drampa (art rare) Pikipek (art rare) Bewear (art rare) Komala (art rare) Decidueye ex (super rare) Dhelmise ex (super rare) Incineroar ex (super rare) Crabominable ex (super rare) Wishiwashi ex (super rare) Alolan Raichu ex (super rare) Lunala ex (super rare) Passimian ex (super rare) Alolan Muk ex (super rare) Solgaleo ex (super rare) Acerola (super rare) Ilima (super rare) Kiawe (super rare) Guzma (super rare) Lana (super rare) Sophocles (super rare) Mallow (super rare) Lillie (super rare) Decidueye ex (special art rare) Dhelmise ex (special art rare) Incineroar ex (special art rare) Crabominable ex (special art rare) Wishiwashi ex (special art rare) Alolan Raichu ex (special art rare) Lunala ex (special art rare) Passimian ex (special art rare) Alolan Muk ex (special art rare) Solgaleo ex (special art rare) Guzma (immersive rare) Lillie (immersive rare) Bulbasaur (shiny) Ivysaur (shiny) Venusaur (shiny) Exeggute (shiny) Exeggutor (shiny) Squirtle (shiny) Wartortle (shiny) Blastoise (shiny) Staryu (shiny) Starmie (shiny) Gastly (shiny) Haunter (shiny) Gengar (shiny) Machop (shiny) Machoke (shiny) Machamp (shiny) Cubone (shiny) Marowak (shiny) Jigglypuff (shiny) Wigglytuff (shiny) Venusaur ex (shiny super rare) Exeggutor ex (shiny super rare) Blastoise ex (shiny super rare) Starmie ex (shiny super rare) Gengar ex (shiny super rare) Machamp ex (shiny super rare) Marowak ex (shiny super rare) Wigglytuff ex (shiny super rare) Lunala ex (crown rare) Solgaleo ex (crown rare) Of course, a plain text list is no fun

The amount of mana you can contribute from your creatures is equal to that creatures power, so with sufficiently strong creatures, or one whose power scales, you can grab practically anything
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Meanwhile, Naya Populate and Sultai Morphs are more or less grouped together in the middle, and which one is better mostly depends on if you need Lightning Greaves or Thran Dynamo more for your collection
For the cost of two mana, Sigarda is even capable of creating a 1/1 Human token by exiling a card from its controller's graveyard