At the beginning of your upkeep, sacrifice Breeding Pit unless you pay {B}{B}.

At the beginning of your end step, create a 0/1 black Thrull creature token.

At the beginning of your upkeep, sacrifice Breeding Pit unless you pay {B}{B}.

At the beginning of your end step, create a 0/1 black Thrull creature token.

Corrupt deals damage to any target equal to the number of Swamps you control. You gain life equal to the damage dealt this way.

Corrupt deals damage to any target equal to the number of Swamps you control. You gain life equal to the damage dealt this way.

Destroy target nonblack creature. It can't be regenerated.

Destroy target nonblack creature. It can't be regenerated.

Sacrifice a Forest: You gain 3 life.

Sacrifice a Forest: You gain 3 life.

Add {B}{B}{B}.

Add {B}{B}{B}.

Add {B}{B}{B}.

Search your library for a card, put that card into your hand, then shuffle.

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

{B}, Sacrifice a creature: Target player loses 1 life.

{B}, Sacrifice a creature: Target player loses 1 life.

{1}, Sacrifice a creature: You gain 2 life.

{1}, Sacrifice a creature: You gain 2 life.

You may cast Haakon, Stromgald Scourge from your graveyard, but not from anywhere else.

As long as Haakon is on the battlefield, you may cast Knight spells from your graveyard.

When Haakon dies, you lose 2 life.

Flying

Cumulative upkeep--Gain control of a land you don't control. (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.)

Herald of Leshrac gets +1/+1 for each land you control but don't own.

When Herald of Leshrac leaves the battlefield, each player gains control of each land they own that you control.

Whenever Infectious Horror attacks, each opponent loses 2 life.

Remove Jeweled Bird from your deck before playing if you're not playing for ante.

{T}: Ante Jeweled Bird. If you do, put all other cards you own from the ante into your graveyard, then draw a card.

Jungle Hollow enters the battlefield tapped.

When Jungle Hollow enters the battlefield, you gain 1 life.

{T}: Add {B} or {G}.

Jungle Hollow enters the battlefield tapped.

When Jungle Hollow enters the battlefield, you gain 1 life.

{T}: Add {B} or {G}.

Jungle Hollow enters the battlefield tapped.

When Jungle Hollow enters the battlefield, you gain 1 life.

{T}: Add {B} or {G}.

Jungle Hollow enters the battlefield tapped.

When Jungle Hollow enters the battlefield, you gain 1 life.

{T}: Add {B} or {G}.

Destroy target artifact or enchantment.

Destroy target artifact or enchantment.

Flying (This creature can't be blocked except by creatures with flying or reach.)

Nightmare's power and toughness are each equal to the number of Swamps you control.

Flying (This creature can't be blocked except by creatures with flying or reach.)

Nightmare's power and toughness are each equal to the number of Swamps you control.

Whenever Noxious Ghoul or another Zombie enters the battlefield, all non-Zombie creatures get -1/-1 until end of turn.

{T}: Add {C}{C}.

Protection from white

{B}: Stromgald Crusader gains flying until end of turn.

{B}{B}: Stromgald Crusader gets +1/+0 until end of turn.

Protection from white

{B}: Stromgald Crusader gains flying until end of turn.

{B}{B}: Stromgald Crusader gets +1/+0 until end of turn.

Protection from white

{B}: Stromgald Crusader gains flying until end of turn.

{B}{B}: Stromgald Crusader gets +1/+0 until end of turn.

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

{T}: Add {C}.

{T}: Add {B} or {G}. Activate only if you control a Swamp.

Thawing Glaciers enters the battlefield tapped.

{1}, {T}: Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle. Return Thawing Glaciers to its owner's hand at the beginning of the next cleanup step.

Flying

Prevent all damage that would be dealt to Tresserhorn Skyknight by creatures with first strike.

Flying

Prevent all damage that would be dealt to Tresserhorn Skyknight by creatures with first strike.

Each land is a Swamp in addition to its other land types.

Each land is a Swamp in addition to its other land types.

Whenever Vengeful Dead or another Zombie dies, each opponent loses 1 life.

{1}: Exile target card from a graveyard.

Other Zombie creatures have swampwalk. (They can't be blocked as long as defending player controls a Swamp.)

Other Zombies have "{B}: Regenerate this permanent."

Other Zombie creatures have swampwalk. (They can't be blocked as long as defending player controls a Swamp.)

Other Zombies have "{B}: Regenerate this permanent."