Drought

Enchantment, 2WW (4)

At the beginning of your upkeep, sacrifice Drought unless you pay {W}{W}.

Spells cost an additional "Sacrifice a Swamp" to cast for each black mana symbol in their mana costs.

Activated abilities cost an additional "Sacrifice a Swamp" to activate for each black mana symbol in their activation costs.

Illus. NéNé Thomas

Gatherer Card Rulings?, Legality?

• 10/4/2004: You have to sacrifice a Swamp for each black mana in the activation cost. If you use Pestilence with {B}{B}{B}{B}, that's 4 activations with {B} each so you sacrifice 4 Swamps.
• 8/1/2008: A hybrid symbol that is both black and another type is a black mana symbol, regardless of what cost is paid for it.

• Legal in Vintage (Type 1)
• Legal in Legacy (Type 1.5)
• Legal in Commander