Underground River [Deckmasters] Modern Masters change Halfdane's base power and

change Halfdane's base power and toughness to the power and toughness of target creature other than Halfdane until the end of your next upkeep

or where prohibited by law or the DCI

Set: Legends Type: Sorcery Rare Cost: {3}{U} You and target player exchange control of the creature you each control with the highest converted mana cost

target non-Wall creature an opponent controls gains forestwalk until your next upkeep

Set: Limited Edition Alpha Type: Enchantment — Aura Rare Cost: {1}{G}{G} Enchant land When enchanted land becomes tapped

Underground River [Deckmasters] Modern Masters change Halfdane's base power andSet: Deckmasters Type: Land Rare Cost: {T}: Add {C}. {T}: Add {U} or {B}. Underground River deals 1 damage to you.