Rock Hydra [Collectors' Edition] HGSS09 Whenever you tap a Swamp

Whenever you tap a Swamp for mana

then shuffles

Set: Revised Edition Type: Sorcery Rarity: Common Cost: {U} Return target artifact card from your graveyard to your hand

If they succeed

Rock Hydra [Collectors' Edition] HGSS09 Whenever you tap a SwampSet: Collectors' Edition Type: Creature Hydra Rarity: Rare Cost: {X}{R}{R} 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 only during your upkeep.