Mana Vortex [The Dark] Dog Construct Echo {3}{W}{W} (At the beginning

Echo {3}{W}{W} (At the beginning of your upkeep

Set: Rivals of Ixalan Type: Creature — Dinosaur Rarity: Rare Cost: {5}{R}{R} Enrage — Whenever Silverclad Ferocidons is dealt damage

The rustling of leaves is the only language that makes any sense

Set: Battle for Zendikar Type: Creature — Human Knight Ally Rarity: Rare Cost: {4}{W} Rally — Whenever Hero of Goma Fada or another Ally enters the battlefield under your control

Mana Vortex [The Dark] Dog Construct Echo {3}{W}{W} (At the beginningSet: The Dark Type: Enchantment Rarity: Rare Cost: {1}{U}{U} When you cast this spell, counter it unless you sacrifice a land. At the beginning of each player's upkeep, that player sacrifices a land. When there are no lands on the battlefield, sacrifice Mana Vortex.