As an additional cost to cast Altar's Reap, sacrifice a creature.
"Don't worry, your death will be as informative as possible."
-Gorghul, augur of skulls
MYTHICSPOILER.COM THE CYCLICAL MTG SPOILER
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KHANS OF TARKIR 
MAGIC 2015 
JOURNEY INTO NYX 
BORN OF THE GODS 
THEROS 
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