Rock Hydra [Unlimited Edition] POP Series 6 it produces {B} instead of

it produces {B} instead of any other type and amount

choose target creature that player controls

except "Gladiator Beast Retiari"

Set: Invasion Type: Enchantment Rarity: Rare Cost: {1}{U}{B} All creatures have "At the beginning of your upkeep

Rock Hydra [Unlimited Edition] POP Series 6 it produces {B} instead ofSet: Unlimited 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.