Rock Hydra [Collectors' Edition] Guilds of Ravnica Prerelease Promos search your library for any

search your library for any number of Dwarf cards

Until that player's next turn

Add an amount of {B} equal to the sacrificed creature's mana value

When Earthbind enters the battlefield

Set: Scourge Type: Instant Rarity: Uncommon Cost: {1}{W} You gain shroud until end of turn

Rock Hydra [Collectors' Edition] Guilds of Ravnica Prerelease Promos search your library for anySet: Collectors' Edition Type: Creature Hydra Rarity: Rare Cost: {X}{R}{R} Rock Hydra enters the battlefield with X +1 +1 counters on it. For each 1 damage that would be dealt to Rock Hydra, if it has a +1 +1 counter on it, remove a +1 +1 counter from it and prevent that 1 damage. {R}: Prevent the next 1 damage that would be dealt to Rock Hydra this turn. {R}{R}{R}: Put a +1 +1 counter on Rock Hydra. Activate only during your upkeep.