21 cards where the set is “thb” and the toughness = 1

Alseid of Life's Bounty (Theros Beyond Death #1)
Eidolon of Obstruction (Theros Beyond Death #12)
Leonin of the Lost Pride (Theros Beyond Death #28)
Protean Thaumaturge (Theros Beyond Death #60)
Stinging Lionfish (Theros Beyond Death #69)
Towering-Wave Mystic (Theros Beyond Death #77)
Aphemia, the Cacophony (Theros Beyond Death #84)
Discordant Piper (Theros Beyond Death #88)
Grim Physician (Theros Beyond Death #100)
Mire Triton (Theros Beyond Death #105)
Scavenging Harpy (Theros Beyond Death #114)
Blood Aspirant (Theros Beyond Death #128)
Careless Celebrant (Theros Beyond Death #129)
Underworld Rage-Hound (Theros Beyond Death #163)
Ilysian Caryatid (Theros Beyond Death #174)
Loathsome Chimera (Theros Beyond Death #177)
Moss Viper (Theros Beyond Death #179)
Setessan Skirmisher (Theros Beyond Death #200)
Devourer of Memory (Theros Beyond Death #213)
Haktos the Unscarred (Theros Beyond Death #218)
Sunlit Hoplite (Theros Beyond Death #273)

The arc of my blade has carved a path of light to the end of these results.