Altar of Mogis
At the beginning of the Horde's precombat main phase, reveal an additional card from the top of the Horde's library. The Horde casts that card.
Hero's Reward -- When Altar of Mogis is put into a graveyard from anywhere, the Horde sacrifices two Minotaurs.
- [TBTH] Battle the Horde #11 (C)