Target creature gains haste until end of turn.

Draw a card.

Create two 1/1 green Squirrel creature tokens.

Flashback—{1}{G}, Pay 3 life. (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Change the text of target spell or permanent by replacing all instances of one color word with another. (This effect lasts indefinitely.)

Flashback {1}{U} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

{3}: Target player mills three cards.

Flying, first strike

Protection from black

At the beginning of your upkeep, sacrifice Anurid Scavenger unless you put a card from your graveyard on the bottom of your library.

Discard a card: Switch Aquamoeba’s power and toughness until end of turn.

Trample

Madness {2}{G} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Flying

{2}{W}, Discard a card: Aven Trooper gets +1/+2 until end of turn.

Flying

{B}: Balshan Collaborator gets +1/+1 until end of turn.

Other Barbarian creatures get +1/+1.

{R}: Another target Barbarian creature gets +1/+0 until end of turn.

When you control no Swamps, sacrifice Barbarian Outcast.

{1}{G}: Basking Rootwalla gets +2/+2 until end of turn. Activate only once each turn.

Madness {0} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Flying

Threshold — As long as seven or more cards are in your graveyard, Boneshard Slasher gets +2/+2 and has “When Boneshard Slasher becomes the target of a spell or ability, sacrifice it.”

Draw four cards, then choose X cards in your hand and discard the rest.

{2}, {T}: Add {B} for each Swamp you control.

Add {B}{B}{B}.

Threshold — Add {B}{B}{B}{B}{B} instead if seven or more cards are in your graveyard.

{2}{B}{B}, {T}, Exile two cards from your graveyard: Return target creature card from your graveyard to your hand.

{B}, {T}: Target creature gets -1/-1 until end of turn.

Threshold — {3}{B}{B}, {T}: Target creature gets -2/-2 until end of turn. Activate only if seven or more cards are in your graveyard.

Whenever Carrion Rats attacks or blocks, any player may exile a card from their graveyard. If a player does, Carrion Rats assigns no combat damage this turn.