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 - $4.60
Near Mint Non-English - $4.60
Lightly Played - $4.20
Lightly Played Non-English - $4.20
Played - $3.20
Played Non-English - $3.20
Heavily Played - $2.80
Heavily Played Non-English - $2.80
Damaged - $2.30
Damaged Non-English - $2.30