Shadows of the Past

Invisible Stalker | Creature | Human Rogue | Hexproof (This creature can't be the target of spells or abilities your opponents control.) Invisible Stalker can't be blocked. | Bud Cook

Murder of Crows | Creature | Bird | Flying Whenever another creature dies, you may draw a card. If you do, discard a card. | Drew Baker

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

Drogskol Captain | Creature | Spirit Soldier | Flying Other Spirit creatures you control get +1/+1 and have hexproof. (They can't be the targets of spells or abilities your opponents control.) | Cristi Balanescu

Diregraf Captain | Creature | Zombie Soldier | Deathtouch Other Zombie creatures you control get +1/+1. Whenever another Zombie you control dies, target opponent loses 1 life. | Slawomir Maniak