Songcrafter Mage {G}{U}{R}
Creature — Human Bard
Flash
When this creature enters, target instant or sorcery card in your graveyard gains harmonize until end of turn. Its harmonize cost is equal to its mana cost. (You may cast that card from your graveyard for its harmonize cost. You may tap a creature you control to reduce that cost by {X}, where X is its power. Then exile the spell.)
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Snapcaster Mage 84%
$18.87#1448
"When this creature enters, target instant or sorcery card in your graveyard gains flashback until end of turn. The flashback cost is equal to its mana cost."
+1 more matching line
Slickshot Lockpicker 84%
$0.19#11061
"When this creature enters, target instant or sorcery card in your graveyard gains flashback until end of turn. The flashback cost is equal to its mana cost."
Impulsivity 82%
$0.28#6414
"When this creature enters, you may cast target instant or sorcery card from a graveyard without paying its mana cost. If that spell would be put into a graveyard, exile it instead."
Chancellor of the Spires 80%
$0.40#13685
"When this creature enters, you may cast target instant or sorcery card from an opponent's graveyard without paying its mana cost."