Shadows of the Past

Mystic Retrieval | Sorcery | | Return target instant or sorcery card from your graveyard to your hand. Flashback {2}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.) | Scott Chou

Bump in the Night | Sorcery | | Target opponent loses 3 life. Flashback {5}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.) | Kev Walker

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

Faithless Looting | Sorcery | | Draw two cards, then discard two cards. Flashback {2}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.) | Gabor Szikszai

Past in Flames | Sorcery | | Each instant and sorcery card in your graveyard gains flashback until end of turn. The flashback cost is equal to its mana cost. Flashback {4}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.) | Anthony Jones

Traitorous Blood | Sorcery | | Gain control of target creature until end of turn. Untap it. It gains trample and haste until end of turn. | Raymond Swanland