Name:Tainted Field
ManaCost:no cost
Types:Land
A:AB$ Mana | Cost$ T | Produced$ C | SpellDescription$ Add {C}.
A:AB$ Mana | Cost$ T | Produced$ W | IsPresent$ Swamp.YouCtrl | SpellDescription$ Add {W}. Activate only if you control a Swamp.
A:AB$ Mana | Cost$ T | Produced$ B | IsPresent$ Swamp.YouCtrl | SpellDescription$ Add {B}. Activate only if you control a Swamp.
SVar:Picture:http://www.wizards.com/global/images/magic/general/tainted_field.jpg
Oracle:{T}: Add {C}.\n{T}: Add {W} or {B}. Activate only if you control a Swamp.