30 cards where the set is “eld” and the cards have a custom Showcase frame

Animating Faerie // Bring to Life (Throne of Eldraine #280)
Ardenvale Tactician // Dizzying Swoop (Throne of Eldraine #273)
Beanstalk Giant // Fertile Footsteps (Throne of Eldraine #295)
Bonecrusher Giant // Stomp (Throne of Eldraine #291)
Brazen Borrower // Petty Theft (Throne of Eldraine #281)
Curious Pair // Treats to Share (Throne of Eldraine #296)
Embereth Shieldbreaker // Battle Display (Throne of Eldraine #292)
Fae of Wishes // Granted (Throne of Eldraine #282)
Faerie Guidemother // Gift of the Fae (Throne of Eldraine #274)
Flaxen Intruder // Welcome Home (Throne of Eldraine #297)
Foulmire Knight // Profane Insight (Throne of Eldraine #286)
Garenbrig Carver // Shield's Might (Throne of Eldraine #298)
Giant Killer // Chop Down (Throne of Eldraine #275)
Hypnotic Sprite // Mesmeric Glare (Throne of Eldraine #283)
Lonesome Unicorn // Rider in Need (Throne of Eldraine #276)
Lovestruck Beast // Heart's Desire (Throne of Eldraine #299)
Merchant of the Vale // Haggle (Throne of Eldraine #293)
Merfolk Secretkeeper // Venture Deeper (Throne of Eldraine #284)
Murderous Rider // Swift End (Throne of Eldraine #287)
Oakhame Ranger // Bring Back (Throne of Eldraine #302)
Order of Midnight // Alter Fate (Throne of Eldraine #288)
Queen of Ice // Rage of Winter (Throne of Eldraine #285)
Realm-Cloaked Giant // Cast Off (Throne of Eldraine #277)
Reaper of Night // Harvest Fear (Throne of Eldraine #289)
Rimrock Knight // Boulder Rush (Throne of Eldraine #294)
Rosethorn Acolyte // Seasonal Ritual (Throne of Eldraine #300)
Shepherd of the Flock // Usher to Safety (Throne of Eldraine #278)
Silverflame Squire // On Alert (Throne of Eldraine #279)
Smitten Swordmaster // Curry Favor (Throne of Eldraine #290)
Tuinvale Treefolk // Oaken Boon (Throne of Eldraine #301)

In the blink of an eye, they strode from deep snow to the end of this search.