Arguably, the most dominant card, at the moment at least, is Palkia ex, with the Water-type Pokemon taking up four of the top ten spots
Participants competed in a series of battles on the first day, with the top players qualifying for the second day of battling

Ageless Entity Ancient Cornucopia Baloth Prime Bloomvine Regent Blossoming Bogbeast Bog-Strider Ash Bounteous Kirin Bristlebud Farmer Comforting Counsel Courser of Kruphix Creeping Crystal Coating Deathgorge Scavenger Deepwood Tantiv Dredger's Insight Druid Class Dwynen, Gilt-Leaf Daen Eager Trufflesnout Earth Kingdom General Elder Gargaroth Engulfing Slagwurm Essence Symbiote Essence Warden Eumidian Terrabotanist Exemplar of Strength Fangren Marauder Favor of the Woods Froghemoth Gala Greeters Galadriel, Gift-Giver Gift of the Woods Gladehart Cavalry Glowing One Gourmand's Talent Graf Mole Graham O'Brien Grazing Gladehart Herald of the Pantheon Heroic Feast Hurska Sweet-Tooth Intrepid Trufflesnout Jaddi Offshoot Kazandu Nectarpot Kibo, Uktabi Prince Laid to Rest Leyline of Vitality Lifegift Lifesmith Lisette, Dean of the Root Living Artifact Lucky the Pizza Dog Lurking Roper Meriadoc Brandybuck Mirkwood Elk Nexus Wardens Orchard Warden Overgrowth Elemental Path of Annihilation Pestbrood Sloth Powerleech Primeval Bounty Prize Pig Prosperous Innkeeper Provisions Merchant Pummeler for Hire Ravenous Daggertooth Retreat to Kazandu Rhys the Exiled Roots of Life Rysorian Badger Sacred Prey

Class cards can only be upgraded as a sorcery Finally, the level three ability lets you search your library for any card, put it into your hand, shuffle your deck, then discard a card at random