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This creature enters with X +1/+1 counters on it. For each 1 damage that would be dealt to this creature, 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 this creature this turn. {R}{R}{R}: Put a +1/+1 counter on this creature. Activate only during your upkeep.
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Rock Hydra (Unlimited Edition 172) is a red Creature — Hydra with mana cost {X}{R}{R} that enters the battlefield with X +1/+1 counters. It prevents damage by removing +1/+1 counters one-for-one and has activated abilities to pay {R} to prevent the next 1 damage this turn or pay {R}{R}{R} during your upkeep to add a +1/+1 counter. Its scaling with X and counter-based damage prevention makes it a growing threat that can soak damage while being fueled by its upkeep counter ability.
Catalog pricing data as of 22 Apr 2026, 15:41
