22 cards where the text includes “heroic” and the color identity ≤ RW

Hero of Iroas (Ultimate Masters #20)
Akroan Crusader (Ultimate Masters #121)
Phalanx Leader (Ultimate Masters #27)
Rosnakht, Heir of Rohgahh (Dominaria United Commander #25)
Anax and Cymede (Theros #186)
Vanguard of Brimaz (Born of the Gods #29)
Fabled Hero (Theros #12)
Akroan Conscriptor (Born of the Gods #87)
Tethmos High Priest (Ultimate Masters #40)
Favored Hoplite (Theros #13)
Akroan Skyguard (Born of the Gods #3)
Satyr Hoplite (Journey into Nyx #110)
Lagonna-Band Trailblazer (Journey into Nyx #14)
Dawnbringer Charioteers (Journey into Nyx #6)
Wingsteed Rider (Double Masters 2022 #35)
Labyrinth Champion (Double Masters 2022 #115)
Arena Athlete (Ultimate Masters #123)
Setessan Battle Priest (Theros #29)
Leonin Iconoclast (Journey into Nyx #16)
Elite Skirmisher (Born of the Gods #8)
Akroan Line Breaker (Journey into Nyx #88)
Weird Angel Flame (Unfinity Sticker Sheets #42)

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