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 - $15.40
Lightly Played - $12.30
Moderately Played - $10.80
Heavily Played - $9.20
Damaged - $7.70
Near Mint Spanish - $15.40
Lightly Played Spanish - $12.30
Moderately Played Spanish - $10.80
Heavily Played Spanish - $9.20
Damaged Spanish - $7.70