Rite of Harmony is a rare Instant card from Innistrad: Midnight Hunt (MID), collector number 374. Current market price: $1.37 (foil $1.01), TCGplayer market prices via Scryfall.
Whenever a creature or enchantment you control enters this turn, draw a card. Flashback {2}{G}{W} (You may cast this card from your graveyard for its flashback cost. Then exile it.)