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'{2}, {T}: Add {B} for each Swamp you control.
{T}: Add {C}. {T}, Sacrifice this land: Search your library for a basic Plains, Island, or Swamp card, put it onto the battlefield tapped, then shuffle. Cycling {W}{U}{B} ({W}{U}{B}, Discard...
'If you control a Swamp, you may sacrifice a creature rather than pay this spell's mana cost.
Each player exiles two cards from their hand.
'Consuming Corruption deals X damage to target creature or planeswalker and you gain X life, where X is the number of Swamps you control.
'Target creature gets -1/-1 until end of turn for each Swamp you control.
'Tendrils of Corruption deals X damage to target creature and you gain X life, where X is the number of Swamps you control.
'Consuming Corruption deals X damage to target creature or planeswalker and you gain X life, where X is the number of Swamps you control.
({T}: Add {B} or {G}.)
As this land enters, you may pay 2 life. If you don't, it enters tapped.
If you control a Swamp, you may pay 4 life rather than pay this spell's mana cost.
Destroy target nonblack creature. It can't be regenerated.