19 cards where the text includes “flashback” and the colors is W

Ancestral Tribute (Odyssey #2)
Battle Screech (Commander Masters #17)
Divine Reckoning (Commander 2019 #62)
Embolden (Odyssey #22)
Feeling of Dread (Innistrad #14)
Gaze of Justice (Time Spiral #20)
Homestead Courage (Innistrad: Midnight Hunt #24)
Increasing Devotion (Commander 2020 #91)
Lingering Souls (Modern Masters 2017 #12)
Marshaling Cry (Future Sight #13)
Momentary Blink (Dominaria Remastered #15)
Prismatic Strands (Commander 2019 #69)
Purify the Grave (Commander 2019 #71)
Rally the Peasants (Ultimate Masters #28)
Ray of Distortion (Commander 2019 #72)
Ray of Revelation (Dark Ascension #17)
Sevinne's Reclamation (Outlaws of Thunder Junction Commander #86)
Spirit Flare (Torment #15)
Visions of Glory (Midnight Hunt Commander #32)

Though this query has ended, its relics still slumber in New Argive.