Name:Nightmare
ManaCost:5 B
Types:Creature Nightmare Horse
PT:*/*
K:Flying
S:Mode$ Continuous | EffectZone$ All | CharacteristicDefining$ True | SetPower$ X | SetToughness$ X | References$ X | Description$ CARDNAME's power and toughness are each equal to the number of Swamps you control.
SVar:X:Count$Valid Swamp.YouCtrl
SVar:BuffedBy:Swamp
SVar:NeedsToPlayVar:X GE4
SVar:Picture:http://resources.wizards.com/magic/cards/9ed/en-us/card83186.jpg
Oracle:Flying\nNightmare's power and toughness are each equal to the number of Swamps you control.