Waves of Aggression (148) [Eventide] HarperPrism Book Promos Whenever you cast an Eldrazi

Whenever you cast an Eldrazi creature spell with mana value 7 or greater

Set: Dragons of Tarkir Prerelease Promos Type: Legendary Creature — Elder Dragon Rarity: Mythic Cost: {4}{G}{W} This spell can't be countered

At the beginning of your postcombat main phase

Full digestion takes three hundred years

Waves of Aggression (148) [Eventide] HarperPrism Book Promos Whenever you cast an EldraziSet: Eventide Type: Sorcery Rarity: Rare Cost: {3}{R W}{R W} Untap all creatures that attacked this turn. After this main phase, there is an additional combat phase followed by an additional main phase. Retrace (You may cast this card from your graveyard by discarding a land card in addition to paying its other costs.)