Name:Infernal Darkness
ManaCost:2 B B
Types:Enchantment
K:Cumulative upkeep:B PayLife<1>:Pay {B} and 1 life.
R:Event$ ProduceMana | ActiveZones$ Battlefield | ValidCard$ Land | ReplaceWith$ ProduceB | Description$ If a land is tapped for mana, it produces {B} instead of any other type.
SVar:ProduceB:DB$ ReplaceMana | ReplaceType$ B
AI:RemoveDeck:All
AI:RemoveDeck:Random
Oracle:Cumulative upkeep—Pay {B} and 1 life. (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)\nIf a land is tapped for mana, it produces {B} instead of any other type.
