Unending Whisper [Tarkir: Dragonstorm]

Set: Tarkir: Dragonstorm Type: Sorcery Rarity: Common Cost: {U} Draw a card.Harmonize 5U (You may cast this 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 this spell.) In the Endless Song, Temur's whisperers hear spirits murmur of the past, present, and future.