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({T}: Add {W} or {B}.)
This land enters tapped unless you control two or more basic lands.
'Tendrils of Corruption deals X damage to target creature and you gain X life, where X is the number of Swamps you control.
'Whenever this creature deals combat damage to a player, if you control a Swamp, you may have that player discard a card.
As this land enters, you may reveal a Plains or Swamp card from your hand. If you don't, this land enters tapped.
{T}: Add {W} or {B}.
{T}: Add {C}. {T}, Sacrifice this land: Search your library for a basic Mountain, Plains, or Swamp card, put it onto the battlefield tapped, then shuffle. Cycling {R}{W}{B} ({R}{W}{B}, Discard...
As this land enters, you may reveal a Plains or Swamp card from your hand. If you don't, this land enters tapped.
{T}: Add {W} or {B}.
'{2}, {T}: Add {B} for each Swamp you control.
As this land enters, you may reveal a Swamp or Mountain card from your hand. If you don't, this land enters tapped.
{T}: Add {B} or {R}.
'Consuming Corruption deals X damage to target creature or planeswalker and you gain X life, where X is the number of Swamps you control.
This land enters tapped unless you control a Plains or a Swamp.
{T}: Add {W} or {B}.
({T}: Add {W} or {B}.)
As this land enters, you may pay 2 life. If you don't, it enters tapped.
'Target creature gets -1/-1 until end of turn for each Swamp you control.