Shadows of the Past

Divine Reckoning | Sorcery | | Each player chooses a creature they control. Destroy the rest. Flashback {5}{W}{W} (You may cast this card from your graveyard for its flashback cost. Then exile it.) | Greg Staples

Increasing Ambition | Sorcery | | Search your library for a card and put that card into your hand. If this spell was cast from a graveyard, instead search your library for two cards and put those cards into your hand. Then shuffle. Flashback {7}{B} (You may cast this card from your graveyard for its flashback cost. Then exile it.) | Volkan Baǵa

Devil's Play | Sorcery | | Devil's Play deals X damage to any target. Flashback {X}{R}{R}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.) | Austin Hsu