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Rock Hydra

Red

9 printings listed in our catalog, from newest to oldest.

Rock Hydra, 30th Anniversary Edition printing
30th Anniversary Edition 30A · No. 167 2022-11-28

Card text

{X}{R}{R}
Creature — Hydra
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.
0 / 0
EDHREC rank #27910 Rare Reserved List
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The 9 printings

All, with their prices ↓

Standard ∅ Not legal
Pioneer ∅ Not legal
Modern ∅ Not legal
Legacy ✓ Legal
Vintage ✓ Legal
Pauper ∅ Not legal
Commander ✓ Legal
Oathbreaker ✓ Legal
Brawl ∅ Not legal
Historic ∅ Not legal
Timeless ∅ Not legal
Alchemy ∅ Not legal
Explorer ∅ Not legal
Gladiator ∅ Not legal
Penny ✓ Legal
Duel ✓ Legal

Official rulings

4 rulings · in English, source Scryfall

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

2004-10-04 · Wizards of the Coast

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

2004-10-04 · Wizards of the Coast

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.

2008-08-01 · Wizards of the Coast

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.

2008-08-01 · Wizards of the Coast

All printings

Rock Hydra, 30th Anniversary Edition printing
30th Anniversary Edition
30A · #167
Rare
∅ No QC price
Rock Hydra, 30th Anniversary Edition printing
30th Anniversary Edition
30A · #464
Rare
∅ No QC price
Rock Hydra, Summer Magic / Edgar printing
Summer Magic / Edgar
SUM · #173
Rare
∅ No QC price
Rock Hydra, Collectors' Edition printing
Collectors' Edition
CED · #172
Rare
∅ No QC price
Rock Hydra, Intl. Collectors' Edition printing
Intl. Collectors' Edition
CEI · #172
Rare
∅ No QC price
Rock Hydra, Limited Edition Beta printing
Limited Edition Beta
LEB · #172
Rare
∅ No QC price
Rock Hydra, Limited Edition Alpha printing
Limited Edition Alpha
LEA · #171
Rare
∅ No QC price