land\'s end

When you cast this spell, counter it unless you sacrifice a land. At the beginning of each player's upkeep, that player sacrifices a land of their choice. When there are no lands on the battlefield, sacrifice this enchantment.

Each other non-Aura enchantment is a creature in addition to its other types and has base power and base toughness each equal to its mana value.

Enchant creature : Exile enchanted creature and all Auras attached to it. At the beginning of the next end step, return that card to the battlefield under its owner's control. If you do, return the other cards exiled this way to the battlefield under their owners' control attached to that creature.

Activated abilities of creatures you control cost less to activate. This effect can't reduce the mana in that cost to less than one mana.