Drought

two generic mana one white mana Enchantment

At the beginning of your upkeep, sacrifice this enchantment unless you pay one white mana .

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.

Showing Ice Age#21

Price

0.32 $

6 printings

Daily estimate from Scryfall, not a shop quote.

2016-06-08
Activated abilities contain a colon. They’re generally written “[Cost]: [Effect].” Some keywords are activated abilities and will have colons in their reminder text.
2008-08-01
A hybrid symbol that is both black and another type is a black mana symbol, regardless of what cost is paid for it.
2004-10-04
You have to sacrifice a Swamp for each black mana in the activation cost. If you use Pestilence with , that’s 4 activations with each so you sacrifice 4 Swamps.