结界~灵气
树林结界或平原结界
每当受此结界的地成为横置时,其操控者失去2点生命。
Corrupted Roots can enchant only a Forest or a Plains. It checks the enchanted land’s subtypes, not its name. If at any time the enchanted land is neither a Forest nor a Plains (due to Unstable Frontier’s ability, perhaps), Corrupted Roots is put into its owner’s graveyard as a state-based action.