Raging River [International Collectors' Edition] 143 {T}: Gain control of target

{T}: Gain control of target creature with power less than or equal to Old Man of the Sea's power for as long as Old Man of the Sea remains tapped and that creature's power remains less than or equal to Old Man of the Sea's power

Set: Shadows over Innistrad Prerelease Promos Type: Creature — Hydra Rarity: Mythic Cost: {4}{G}{G} Reach

Whenever Treva

Set: World Championships 2007 Type: Supporter Rarity: Uncommon

Set: Gym Heroes Unlimited Type: Grass Rarity: Rare Retreat cost: Colorless

Raging River [International Collectors' Edition] 143 {T}: Gain control of targetSet: International Collectors' Edition Type: Enchantment Rarity: Rare Cost: {R}{R} Whenever one or more creatures you control attack, each defending player divides all creatures without flying they control into a "left" pile and a "right" pile. Then, for each attacking creature you control, choose "left" or "right." That creature can't be blocked this combat except by creatures with flying and creatures in a pile with the chosen label.