Wizards says these will appear at all rarities
Advanced Search Sets Random Syntax Accursed Horde Adamant Will Aegis Angel Aethershield Artificer Agonasaur Rex Ajani's Presence Alesha's Legacy Angelfire Ignition Angelheart Protector Armor of Shadows Arwen, Mortal Queen Assure // Assemble Assure // Assemble Athreos, God of Passage Athreos, Shroud-Veiled Azra Smokeshaper Bane, Lord of Darkness Bant Barbed Servitor Basri Ket Bast, Panther Goddess Battle at the Helvault Battle-Rage Blessing Besieged Viking Village Bhaal, Lord of Murder Biosynthic Burst Blacksmith's Skill Bladed Battle-Fan Blessed Hippogriff Blessed Hippogriff Blizzard Brawl Boros Charm Brash Taunter Built to Last Bulwark Ox Burdened Stoneback Burn from Within Campsite Cuisine Captain America's Shield Captain America, Steve Rogers Celestial Armor Claim the Kingdom Cloud, Planet's Champion Collective Resistance Consecrate Land Consul's Shieldguard Crumb and Get It Daring Fiendbonder Dark Endurance Darksteel Axe Darksteel Garrison Deathless Angel Defend the Rider Destined // Lead Destined // Lead Dihada, Binder of Wills Divine Resilience Eagle of Deliverance Earth Kingdom Protectors Efflorescence Elspeth, Knight-Errant Endurance Bobblehead Ephemeral Shields Erebos, Bleak-Hearted Etchings of the Chosen Fated Clash Fated Return Fey Steed Fight as One Flare of Faith Foot Elite For the Common Good
The cards action, which allows a player to counter creatures of a different mana color, makes the implication even less subtle
These also make for great lighting if you make content or take pictures of cards for sale
With Pongo, 'Old Rascal and Peter Pan, Never Landing, you can stick cards on your board early and generate lore unchallenged, every single turn
