Invasion of Lorwyn // Winnowing Forces

Description

Invasion of Lorwyn // Winnowing Forces (MOM 236) is a double-faced card printed in March of the Machine that is a Siege on its front face and an Elf Warrior creature on its back. The Siege destroys a non-Elf opponent creature with power up to the number of lands you control when it enters, and if its defense counters are removed it is exiled and you may cast the transformed creature without paying its mana cost. The back face, Winnowing Forces, is a creature whose power and toughness each equal the number of lands you control, scaling as your mana base grows.