When this creature enters, you may discard any number of land cards. Put that many +1/+1 counters on this creature and draw that many cards.

, , Sacrifice this creature: Destroy target enchantment.
Threshold — This creature gets +1/+1 as long as there are seven or more cards in your graveyard.

Violent Eruption deals 4 damage divided as you choose among any number of targets.
Madness (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)
: Target black creature gets -2/-0 until end of turn.

When this creature enters, you gain 4 life.

Whenever a permanent other than this enchantment is put into a graveyard from the battlefield, this enchantment deals 1 damage to each creature and each player.
When no creatures are on the battlefield, sacrifice this enchantment.

When this creature dies, distribute three -1/-1 counters among one, two, or three target creatures. For each -1/-1 counter you put on a creature this way, remove a -1/-1 counter from that creature at the beginning of the next end step.

Flying
Threshold — As long as there are seven or more cards in your graveyard, this creature gets +1/+1, is black, and has ", : Destroy target blue creature."

Flying
: This creature gets +1/+1 until end of turn.

Haste
Threshold — As long as there are seven or more cards in your graveyard, this creature has "When this creature enters, creatures you control get +1/+1 and gain trample until end of turn."

Return target creature and target land to their owners' hands.

Flying
Threshold — As long as there are seven or more cards in your graveyard, this creature has "When this creature enters, nonblack creatures get -2/-2 until end of turn."

Flying (This creature can't be blocked except by creatures with flying or reach.)
Whenever a creature dealt damage by this creature this turn dies, put a +1/+1 counter on this creature.

Choose target instant or sorcery spell that targets only a single permanent or player. Copy that spell for each other permanent or player the spell could target. Each copy targets a different one of those permanents and players.

Flying
, Sacrifice this creature: Counter target spell that targets a creature you control.

Trample
Madness (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
When this creature enters, target player loses 3 life.
When this creature leaves the battlefield, that player gains 3 life.

For each creature token on the battlefield, its controller creates a token that's a copy of that creature.
Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Target player discards a card for each Swamp you control.

Whenever this creature deals combat damage to a creature, destroy that creature. It can't be regenerated.
Discard a card: This creature gains flying and protection from green and from white until end of turn.

Whenever this creature attacks or blocks, any player may exile three cards from their graveyard. If a player does, this creature assigns no combat damage this turn.

All Nightmares get +1/+1.
, Pay 3 life: Put target creature card from a graveyard onto the battlefield under your control. That creature is black and is a Nightmare in addition to its other creature types.
When Chainer leaves the battlefield, exile all Nightmares.

At the beginning of your upkeep, sacrifice this creature unless you put two cards from your graveyard on the bottom of your library.
, Discard a card: You may have this creature assign its combat damage this turn as though it weren't blocked.

Discard a card at random: This creature gets +1/+0 and gains first strike until end of turn.

Whenever this creature becomes the target of a spell or ability, mill two cards.

At the beginning of your upkeep, you lose 1 life.
At the beginning of your upkeep, you may return target creature card from your graveyard to the battlefield. That creature gains haste until end of turn. Exile it at the beginning of the next end step.

As an additional cost to cast this spell, discard a card.
Target creature gets -5/-5 until end of turn.

Trample
, Discard a card: Regenerate this creature.

When this creature enters, target player loses 6 life.
When this creature leaves the battlefield, that player gains 6 life.
: Regenerate this creature.

You don't lose the game for having 0 or less life.
When you have 20 or more life, you lose the game.
Whenever you lose life, you gain 2 life for each 1 life you lost. (Damage dealt to you causes you to lose life.)

When this creature enters, flip a coin until you lose a flip. Put a +1/+1 counter on this creature for each flip you won.

Kamahl's Sledge deals 4 damage to target creature.
Threshold — If there are seven or more cards in your graveyard, instead Kamahl's Sledge deals 4 damage to that creature and 4 damage to that creature's controller.

Flying, first strike

When this creature enters, exile two target lands.
When this creature leaves the battlefield, return the exiled cards to the battlefield under their owners' control.
: This creature gets +1/+0 until end of turn.

Flying
When this creature enters, if you cast it from your hand, exile all cards from target opponent's hand.
When this creature leaves the battlefield, return the exiled cards to their owner's hand.