Salt Marsh

Salt Marsh comes into play tapped. {T}: Add {U} or {B} to your mana pool.

Recoil

Return target permanent to its owner's hand. Then that player discards a card from his or her hand.

Repulse

Return target creature to its owner's hand. Draw a card.

Ghastly Demise

Destroy target nonblack creature if its toughness is less than or equal to the number of cards in your graveyard.

Cephalid Coliseum

{T}: Add {U} to your mana pool. Cephalid Coliseum deals 1 damage to you. Threshold - {U}, {T}, Sacrifice Cephalid Coliseum: Target player draws three cards, then discards three cards from his or her hand. (Play this ability only if seven or more cards are in your graveyard.)

Darkwater Catacombs

{1}, {T}: Add {U}{B} to your mana pool.

Coffin Purge

Remove target card in a graveyard from the game. Flashback {B} (You may play this card from your graveyard for its flashback cost. Then remove it from the game.)

Upheaval

Return all permanents to their owners' hands.

Nightscape Familiar

Blue spells and red spells you play cost 1 less to play. {1}{B}: Regenerate Nightscape Familiar.

Slay

Destroy target green creature. It can't be regenerated. Draw a card.

Psychatog

Discard a card: Psychatog gets +1/+1 until end of turn. Remove two cards in your graveyard from the game: Psychatog gets +1/+1 until end of turn.

Cunning Wish

Choose an instant you own from outside the game, reveal that card, and put it into your hand. Remove Cunning Wish from the game.

Memory Lapse

Counter target spell. Put it on top of its owner's library instead of into that player's graveyard.

Underground River

{T}: Add {1} to your mana pool. {T}: Add {U} or {B} to your mana pool. Underground River deals 1 damage to you.

Gainsay

Counter target blue spell.

Circular Logic

Counter target spell unless its controller pays {1} for each card in your graveyard. Madness {U} (You may play this card for its madness cost at the time you discard it from your hand.)

Deep Analysis

Target player draws two cards. Flashback - {1}{U}, Pay 3 life. (You may play this card from your graveyard for its flashback cost. Then remove it from the game.)

Counterspell

Counters target spell as it is being cast.

Mana Short

All opponent's lands are tapped, and opponent's mana pool is emptied. Opponent takes no damage from unspent mana.

Hibernation

Return all green permanents to owners' hands.

Fact or Fiction

Duress

Target opponent reveals their hand. You choose a noncreature, nonland card from it. That player discards that card.

Swamp

({T}: Add {B}.)