18 cards where the set is “thb” and the cards are exclusive Planeswalker Deck cards

Elspeth, Undaunted Hero (Theros Beyond Death #270)
Eidolon of Inspiration (Theros Beyond Death #271)
Elspeth's Devotee (Theros Beyond Death #272)
Sunlit Hoplite (Theros Beyond Death #273)
Ashiok, Sculptor of Fears (Theros Beyond Death #274)
Swimmer in Nightmares (Theros Beyond Death #275)
Mindwrack Harpy (Theros Beyond Death #276)
Ashiok's Forerunner (Theros Beyond Death #277)
Plains (Theros Beyond Death #278)
Plains (Theros Beyond Death #279)
Island (Theros Beyond Death #280)
Island (Theros Beyond Death #281)
Swamp (Theros Beyond Death #282)
Swamp (Theros Beyond Death #283)
Mountain (Theros Beyond Death #284)
Mountain (Theros Beyond Death #285)
Forest (Theros Beyond Death #286)
Forest (Theros Beyond Death #287)

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