Crystals are more likely to see play in 2+ color decks than the Medallions
However, thanks to cards like Quintorius Kand, I think you can find a use for making as many of these tokens as possible
Accursed Horde Adanto Vanguard Ademi of the Silkchutes Adept Watershaper Aegis Angel Aethershield Artificer Agent Frank Horrigan Agonasaur Rex Ainok Strike Leader Akiri, Fearless Voyager Akroma, Vision of Ixidor Amaranthine Wall Anara, Wolvid Familiar Angelheart Protector Angelic Guardian Angelic Overseer Animus of Predation Anya, Merciless Angel Archangel Avacyn Arco-Flagellant Arwen, Mortal Queen Athreos, God of Passage Athreos, Shroud-Veiled Avacyn, Angel of Hope Azlask, the Swelling Scourge Azra Smokeshaper Bane, Lord of Darkness Banquet Guests Barbed Servitor Bark-Knuckle Boxer Basri, Tomorrow's Champion Bast, Panther Goddess Bastion Protector Belligerent Regisaur Bello, Bard of the Brambles Bellowing Elk Bhaal, Lord of Murder Bladed Ambassador Blessed Hippogriff Blightsteel Colossus Bloodsworn Knight Bloodsworn Squire Bontu the Glorified Boromir, Warden of the Tower Brash Taunter Bronzehide Lion Bulwark Ox Burdened Stoneback Cait, Cage Brawler Captain America, Skybound Captain America, Steve Rogers Captain America, Unbowed Captain Marvel, Apex Avenger Captain Marvel, Earth's Protector Cathar's Companion Cecil, Redeemed Paladin Celebr-8000 Cloud, Planet's Champion Colossus of Akros Colossus, Steel Stalwart Consul's Shieldguard Creepy Doll Crested Sunmare Crew Captain Daring Fiendbonder Darksteel Colossus Darksteel Gargoyle Darksteel Juggernaut Darksteel Myr Darksteel Sentinel Darksteel Splicer Darwin, Adaptive Mutant
It is a card that shows how many times you instructed your Pokmon
