Rock Hydra 
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.
: Prevent the next 1 damage that would be dealt to this creature this turn.
: Put a +1/+1 counter on this creature. Activate only during your upkeep.
Legality
standardNOT LEGALpioneerNOT LEGALmodernNOT LEGALlegacyLEGALvintageLEGALcommanderLEGAL
Prints
30th Anniversary Edition
EN · 30A · 2022-11-28
30th Anniversary Edition
EN · 30A · 2022-11-28
Masters Edition IV
EN · ME4 · 2011-01-10
Summer Magic / Edgar
EN · SUM · 1994-06-21
Revised Edition
EN · 3ED · 1994-04-11
Intl. Collectors' Edition
EN · CEI · 1993-12-10
Collectors' Edition
EN · CED · 1993-12-10
Unlimited Edition
EN · 2ED · 1993-12-01
Limited Edition Beta
EN · LEB · 1993-10-04
Limited Edition Alpha
EN · LEA · 1993-08-05
Foreign Black Border
FR · FBB · 1994-04-11