Name:Invasion of Lorwyn
ManaCost:4 B G
Types:Battle Siege
Defense:5
T:Mode$ ChangesZone | ValidCard$ Card.Self | Origin$ Any | Destination$ Battlefield | Execute$ TrigDestroy | TriggerDescription$ When CARDNAME enters, destroy target non-Elf creature an opponent controls with power X or less, where X is the number of lands you control.
SVar:TrigDestroy:DB$ Destroy | ValidTgts$ Creature.nonElf+OppCtrl+powerLEX | TgtPrompt$ Select target non-Elf creature an opponent controls with power X or less, where X is the number of lands you control
SVar:X:Count$Valid Land.YouCtrl
AlternateMode:DoubleFaced
Oracle:(As a Siege enters, choose an opponent to protect it. You and others can attack it. When it's defeated, exile it, then cast it transformed.)\nWhen Invasion of Lorwyn enters, destroy target non-Elf creature an opponent controls with power X or less, where X is the number of lands you control.

ALTERNATE

Name:Winnowing Forces
ManaCost:no cost
Colors:black,green
Types:Creature Elf Warrior
PT:*/*
S:Mode$ Continuous | EffectZone$ All | CharacteristicDefining$ True | SetPower$ X | SetToughness$ X | Description$ CARDNAME's power and toughness are each equal to the number of lands you control.
SVar:X:Count$Valid Land.YouCtrl
SVar:BuffedBy:Land
Oracle:Winnowing Forces's power and toughness are each equal to the number of lands you control.
