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 this ability only during your upkeep.
Near Mint - $5.30
Lightly Played - $4.20
Moderately Played - $3.70
Heavily Played - $3.20
Damaged - $2.70
Near Mint Spanish - $5.30
Lightly Played Spanish - $4.20
Moderately Played Spanish - $3.70
Heavily Played Spanish - $3.20
Damaged Spanish - $2.70