Acclaimed Contender Acid Web Spider Adelbert Steiner Akiri, Fearless Voyager Akki Battle Squad Akki Ember-Keeper Ambitious Assault Ancestral Blade Ancestral Katana Anchor to Reality Angler's Shield Animal Friend Araa, Heart of the Spider Ardenn, Intrepid Archaeologist Armament Master Armed Response Armed and Armored Armed with Proof Armored Skyhunter Armory Automaton Armory Paladin Arterial Alchemy Artificer's Hex Assassin Gauntlet Assimilation Aegis Astor, Bearer of Blades Astrologian's Planisphere Auriok Survivors Auriok Windwalker Auxiliary Boosters Avarice Amulet Awaken the Sleeper Axgard Armory Balan, Wandering Knight Banshee's Blade Barbed Batterfist Barbed Bloodletter Barbed Spike Bard's Bow Barret, Avalanche Leader Baseball Bat Batterbone Batterskull Battlefield Improvisation Bearded Axe Beatrix, Loyal General Bello, Bard of the Brambles Benevolent Blessing Bespoke Battlegarb Bespoke B Biorganic Carapace Bitterthorn, Nissa's Animus Black Mage's Rod Blacksmith's Talent Blade of Shared Souls Bladed Battle-Fan Bladegraft Aspirant Bladehold War-Whip Blastfire Bolt Bloodforged Battle-Axe Bloodthirsty Blade Bludgeon Brawl Bonehoard Bramble Armor Brass Knuckles Brass Squire Bride's Gown Brotherhood Outcast Bruenor Battlehammer Bucky Barnes, Eager Ally Bureau Headmaster Candlestick

If you dont have lots of resources in your hand, you can also sacrifice a scarecrow specifically to draw a card, then use Scarecrones activated ability to bring it right back
According to retail prices, the most valuable (non-foil, non-special printing) card you can open day one of Foundation's release is everyone's favorite carrot top vampire, Bloodthirsty Conqueror
Every card allows you to break the rules at some point
However, unbanning a card for a three-month trial period shouldnt be that big of a deal
The new Arceus ex card certainly looks like it could shake up the game's meta