Shadows of the Past

Rally the Peasants | Instant | | Creatures you control get +2/+0 until end of turn. Flashback {2}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.) | Jaime Jones

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

Brimstone Volley | Instant | | Brimstone Volley deals 3 damage to any target. Morbid — Brimstone Volley deals 5 damage instead if a creature died this turn. | Eytan Zana

Skirsdag Cultist | Creature | Human Shaman | {R}, {T}, Sacrifice a creature: Skirsdag Cultist deals 2 damage to any target. | Slawomir Maniak

Stromkirk Captain | Creature | Vampire Soldier | First strike Other Vampire creatures you control get +1/+1 and have first strike. | Jana Schirmer & Johannes Voss

Immerwolf | Creature | Wolf | Intimidate (This creature can't be blocked except by artifact creatures and/or creatures that share a color with it.) Each other creature you control that's a Wolf or a Werewolf gets +1/+1. Non-Human Werewolves you control can't transform. | Cristi Balanescu