Herald of Secret Streams [Ixalan Prerelease Promos] Oathbreaker if you control at least

if you control at least five other Mountains

and the Unbeholden

pay {0} and exile it with three time counters on it

Set: Portal Three Kingdoms Type: Sorcery Rarity: Rare Cost: {X}{R} Rolling Earthquake deals X damage to each creature without horsemanship and each player

Set: Rivals of Ixalan Prerelease Promos Type: Legendary Creature — Elder Dinosaur Rarity: Rare Cost: {5}{U}{U} This spell can't be countered

Herald of Secret Streams [Ixalan Prerelease Promos] Oathbreaker if you control at leastSet: Ixalan Prerelease Promos Type: Creature Merfolk Warrior Rarity: Rare Cost: {3}{U} Creatures you control with +1 +1 counters on them can't be blocked. "You might as well try to stop the waterfall."