Rock Hydra [Unlimited Edition] XY113 then look at the top

then look at the top X cards of your library

Set: International Collectors' Edition Type: Artifact Rarity: Uncommon Cost: {2} At the beginning of each player's upkeep

such as the purple-black King

Sacrifice five artifacts: Take an extra turn after this one

Rock Hydra [Unlimited Edition] XY113 then look at the topSet: Unlimited 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.