: Add to your mana pool. Cephalid Coliseum deals 1 damage to you.
Threshold - , , Sacrifice Cephalid Coliseum: Target player draws three cards, then discards three cards. Activate this ability only if seven or more cards are in your graveyard.

Whenever a nontoken creature is put into your graveyard from the battlefield, if Bridge from Below is in your graveyard, put a 2/2 black Zombie creature token onto the battlefield.
When a creature is put into an opponent's graveyard from the battlefield, if Bridge from Below is in your graveyard, exile Bridge from Below.

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

Name a nonland card. Target player reveals his or her hand and discards all cards with that name.
Flashback - Sacrifice a creature.

Draw two cards, then discard two cards.

Golgari Grave-Troll enters the battlefield with a +1/+1 counter on it for each creature card in your graveyard.
, Remove a +1/+1 counter from Golgari Grave-Troll: Regenerate Golgari Grave-Troll.
Dredge 6

Haste
At the beginning of the end step, sacrifice Ichorid.
At the beginning of your upkeep, if Ichorid is in your graveyard, you may exile a black creature card other than Ichorid from your graveyard. If you do, return Ichorid to the battlefield.

Flying
When Narcomoeba is put into your graveyard from your library, you may put it onto the battlefield.

Discard a card: Putrid Imp gains flying until end of turn.
Threshold - As long as seven or more cards are in your graveyard, Putrid Imp gets +1/+1 and can't block.

Whenever City of Brass becomes tapped, it deals 1 damage to you.
: Add one mana of any color to your mana pool.

Gemstone Mine enters the battlefield with three mining counters on it.
, Remove a mining counter from Gemstone Mine: Add one mana of any color to your mana pool. If there are no mining counters on Gemstone Mine, sacrifice it.

Flying
Whenever Stinkweed Imp deals combat damage to a creature, destroy that creature.
Dredge 5

Return target creature card from your graveyard to the battlefield.
Flashback - Sacrifice three creatures.

: Add to your mana pool.
: Add one mana of any color to your mana pool. Tarnished Citadel deals 3 damage to you.

As an additional cost to cast Firestorm, discard X cards.
Firestorm deals X damage to each of X target creatures and/or players.

When Golgari Thug dies, put target creature card from your graveyard on top of your library.
Dredge 4

Kicker
Flying
When Sphinx of Lost Truths enters the battlefield, draw three cards. Then if it wasn't kicked, discard three cards.

Discard a card: Tireless Tribe gets +0/+4 until end of turn.

When Flame-Kin Zealot enters the battlefield, creatures you control get +1/+1 and gain haste until end of turn.

Flying
When Angel of Despair enters the battlefield, destroy target permanent.

Flying
As Iona, Shield of Emeria enters the battlefield, choose a color.
Your opponents can't cast spells of the chosen color.

Destroy target artifact.
Flashback

Return target nonland permanent to its owner's hand. Then that permanent's controller may sacrifice a land. If the player does, he or she may copy this spell and may choose a new target for that copy.

Destroy target artifact or enchantment. Its controller gains 4 life.

Each player draws three cards, then discards three cards at random.

If Leyline of the Void is in your opening hand, you may begin the game with it on the battlefield.
If a card would be put into an opponent's graveyard from anywhere, exile it instead.