I dont like the idea of putting flashback cards into the graveyard, though
Once the duel starts, pass your turn and your opponent will be forced to forfeit
That said, you should keep in mind that Sprites Blessing requires you to tribute Monsters with a total Level that exactly equals that of your Ritual Summon target, so it may not be the best choice if your chosen Ritual Monsters dont have Levels that line-up
For example, suppose you control Edgar, King of Figaro, Ral Zarek, and Chance Encounter (which has "Whenever you win a coin flip, put a luck counter on this enchantment.") and you activate Ral Zarek's last ability ("7: Flip five coins
Sebastian Rosenauer Archmages Charm
What are some reasons that might be the case