I mentioned Tesak, Judiths HellhoundTesak, Judiths Hellhound earlier
Still, its troubling to imagine a failing corporate business stomping into territory that often means the difference between life and death for brick n mortar hobby shops.

Aboshan's Desire Anurid Barkripper Aven Warcraft Barbarian Ring Battlefield Scrounger Battlewise Aven Billowing Shriekmass Bloodcurdler Boneshard Slasher Cabal Initiate Cabal Inquisitor Cabal Pit Cabal Ritual Cabal Torturer Centaur Chieftain Centaur Garden Cephalid Coliseum Cephalid Inkmage Cephalid Sage Chainflinger Childhood Horror Chlorophant Cleansing Meditation Crashing Centaur Crypt Feaster Decaying Soil Demoralize Dirty Wererat Divine Sacrament Dreadwing Scavenger Epicenter Excavating Anurid Far Wanderings Fledgling Dragon Frightcrawler Gloomdrifter Grizzly Fate Hallowed Healer Hunting Grounds Infected Vermin Kamahl's Desire Kamahl's Sledge Kiora, the Rising Tide Kirtar's Desire Kirtar's Wrath Krosan Avenger Krosan Beast Krosan Restorer Lightning Surge Masked Gorgon Metamorphic Wurm Mind Drill Assailant Mindwhisker Mystic Crusader Mystic Enforcer Mystic Familiar Mystic Penitent Mystic Visionary Mystic Zealot Nantuko Blightcutter Nantuko Calmer Nantuko Monastery Nightwhorl Hermit Nimble Mongoose Nomad Decoy Nomad Stadium Nut Collector Otarian Juggernaut Pardic Arsonist Patriarch's Desire Persistent Marshstalker Possessed Aven

Voice of Zendikar is one of the safest three mana walkers you can make and so while her effects are often quite low value they will still often dominate a game
In recent memory, Wizards of the Coast has been reworking older mechanics into newer abilities
Thus, practice matches are mainly used either when first learning how to play or when an environment where the opponent does not pose a meaningful threat is desired