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Rock Hydra

Rock Hydra

{X}{R}{R}

Creature — Hydra

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.

0/0

Illustrated by

Unlimited EditionUnlimited Edition#172·Rare·English
Oct 23, 2026
Market$48.15
Median$36.65

This card is on the Reserved List

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Legality

LegalCommanderNot legalStandardNot legalModernNot legalPremodernLegalLegacyLegalVintageNot legalBrawlNot legalPioneer
LegalOathbreaker
Not legalPauperNot legalHistoric
Not legalTimeless

Rulings

Oct 4, 2004

If put onto the battlefield without casting it from your hand, X will be zero.

Oct 4, 2004

Once on the battlefield, the X is considered to be zero when calculating its mana cost.

Aug 1, 2008

You can activate the activated ability that prevents damage any time, even if no source seems likely to deal damage to you in the near future. It will prevent the next 1 damage that would be dealt this turn, even if that turns out to be much later in the turn.

Aug 1, 2008

If damage that would be dealt to Rock Hydra can’t be prevented, you still remove a +1/+1 counter from it for each 1 damage dealt.