Archmage's Newt {1}{U}
Creature — Salamander Mount
Whenever this creature deals combat damage to a player, target instant or sorcery card in your graveyard gains flashback until end of turn. The flashback cost is equal to its mana cost. That card gains flashback {0} until end of turn instead if this creature is saddled. (You may cast that card from your graveyard for its flashback cost. Then exile it.)
Saddle 3
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Cards that do something similar expected a card that isn't here?
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Efreet Flamepainter 90%
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Tzaangor Shaman 87%
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Sphinx of Forgotten Lore 86%
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Haunting Figment 84%
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Past in Flames 84%
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"Each instant and sorcery card in your graveyard gains flashback until end of turn. The flashback cost is equal to its mana cost."