Commander creatures you own have "Whenever this creature attacks a player, if no opponent has more life than that player, put a +1/+1 counter on this creature. It gains deathtouch and indestructible until end of turn."

You draw three cards and you lose 3 life.

Whenever Audacious Thief attacks, you draw a card and you lose 1 life.

{T}: Add {C}.

{2}, {T}: Target creature gets +X/+X until end of turn, where X is the number of Gates you control. Activate only as a sorcery.

All creatures get -2/-2 until end of turn.

Madness {2}{B} (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

Acid Breath -- When Black Dragon enters the battlefield, target creature an opponent controls gets -3/-3 until end of turn.

Flying

When Cadaver Imp enters the battlefield, you may return target creature card from your graveyard to your hand.

Exile target card from a graveyard. If it was a creature card, you gain 3 life. Otherwise, you draw a card.

Escape--{3}{B}, Exile five other cards from your graveyard. (You may cast this card from your graveyard for its escape cost.)

When Clockwork Fox leaves the battlefield, you draw two cards and each opponent draws a card.

Clockwork Hydra enters the battlefield with four +1/+1 counters on it.

Whenever Clockwork Hydra attacks or blocks, remove a +1/+1 counter from it. If you do, Clockwork Hydra deals 1 damage to any target.

{T}: Put a +1/+1 counter on Clockwork Hydra.

Indestructible

Whenever Creepy Doll deals combat damage to a creature, flip a coin. If you win the flip, destroy that creature.

Exile target card from a graveyard.

Draw a card.

{T}: Add {C}.

{1}, {T}, Sacrifice Cryptic Caves: Draw a card. Activate only if you control five or more lands.

Whenever another creature dies, you may gain 1 life.

Vigilance (Attacking doesn't cause this creature to tap.)

As Diamond Knight enters the battlefield, choose a color.

Whenever you cast a spell of the chosen color, put a +1/+1 counter on Diamond Knight.

Flash

{T}, Sacrifice Dire Mimic: Add one mana of any color.

{3}: Dire Mimic becomes a Shapeshifter artifact creature with base power and toughness 5/5 until end of turn.

Return target creature card from your graveyard to your hand.

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

{3}, {T}, Sacrifice Dreamstone Hedron: Draw three cards.

Creatures your opponents control get -1/-1 until end of turn. Exile Festering March with three time counters on it.

Suspend 3--{2}{B} (Rather than cast this card from your hand, you may pay {2}{B} and exile it with three time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, cast it without paying its mana cost.)

When Festering Mummy dies, you may put a -1/-1 counter on target creature.

At the beginning of each player's draw step, that player draws two additional cards.

Target player draws two cards and loses 2 life.

Adamant -- If at least three black mana was spent to cast this spell, create a Food token. (It's an artifact with "{2}, {T}, Sacrifice this artifact: You gain 3 life.")

Creatures your opponents control with hexproof can be the targets of spells and abilities you control as though they didn't have hexproof.

{3}, Sacrifice Glaring Spotlight: Creatures you control gain hexproof until end of turn and can't be blocked this turn.

All creatures get -1/-1 until end of turn. Creatures that are green and/or white get an additional -2/-2 until end of turn.

When Gollum, Patient Plotter leaves the battlefield, the Ring tempts you.

{B}, Sacrifice a creature: Return Gollum from your graveyard to your hand. Activate only as a sorcery.

When Gravedigger enters the battlefield, you may return target creature card from your graveyard to your hand.

When Gray Merchant of Asphodel enters the battlefield, each opponent loses X life, where X is your devotion to black. You gain life equal to the life lost this way. (Each {B} in the mana costs of permanents you control counts toward your devotion to black.)

Target player draws three cards and loses 3 life.

If you control two or more other lands, Hive of the Eye Tyrant enters the battlefield tapped.

{T}: Add {B}.

{3}{B}: Until end of turn, Hive of the Eye Tyrant becomes a 3/3 black Beholder creature with menace and "Whenever this creature attacks, exile target card from defending player's graveyard." It's still a land.

Flying

Whenever a creature becomes the target of a spell or ability, destroy that creature.

At the beginning of each player's draw step, if Howling Mine is untapped, that player draws an additional card.

{1}, {T}: Tap target artifact, creature, or land.

(As a Siege enters, choose an opponent to protect it. You and others can attack it. When it's defeated, exile it, then cast it transformed.)

When Invasion of Ulgrotha enters the battlefield, it deals 3 damage to any other target and you gain 3 life.

Flying

Whenever a creature an opponent controls dies, put a +1/+1 counter on Grandmother Ravi Sengir and you gain 1 life.

Target opponent sacrifices a creature. If they can't, they lose 2 life and you draw a card. Then repeat this process for an enchantment and a planeswalker.

Flash

Menace

When Lobelia Sackville-Baggins enters the battlefield, exile target creature card from an opponent's graveyard that was put there from the battlefield this turn, then create X Treasure tokens, where X is the exiled card's power.

{1}, {T}: Untap another target artifact.

{3}, {T}: Target creature can't be blocked this turn.

{T}: Add {C}.

{1}, {T}, Sacrifice Mind Stone: Draw a card.

{B}: Nantuko Shade gets +1/+1 until end of turn.

As an additional cost to cast this spell, sacrifice a creature.

Draw two cards. If the sacrificed creature was legendary, draw three cards instead.

Flying

When Nautiloid Ship enters the battlefield, exile target player's graveyard.

Whenever Nautiloid Ship deals combat damage to a player, you may put a creature card exiled with Nautiloid Ship onto the battlefield under your control.

Crew 3

Target creature gains swampwalk until end of turn. (It can't be blocked as long as defending player controls a Swamp.)

Draw a card.

Weird Insight -- When Nothic dies, roll a d20.

1--9 | You draw a card and you lose 1 life.

10--19 | You draw two cards and you lose 2 life.

20 | You draw seven cards and you lose 7 life.

Flash

When Omen of the Dead enters the battlefield, return target creature card from your graveyard to your hand.

{2}{B}, Sacrifice Omen of the Dead: Scry 2.

Lifelink

When Passageway Seer enters the battlefield, you take the initiative.

At the beginning of your end step, if you have the initiative, put a +1/+1 counter on Passageway Seer.

Choose two --

• Target player loses X life.

• Return target creature card with mana value X or less from your graveyard to the battlefield.

• Target creature gets -X/-X until end of turn.

• Up to X target creatures gain fear until end of turn. (They can't be blocked except by artifact creatures and/or black creatures.)

{T}: Add {C}.

{T}, Sacrifice Quicksand: Target attacking creature without flying gets -1/-2 until end of turn.

{B}, {T}: Tap target creature.

When Runed Servitor dies, each player draws a card.

Return target creature card from your graveyard to your hand. The Ring tempts you.

Menace

Whenever Sauron, the Necromancer attacks, exile target creature card from your graveyard. Create a tapped and attacking token that's a copy of that card, except it's a 3/3 black Wraith with menace. At the beginning of the next end step, exile that token unless Sauron is your Ring-bearer.

Whenever another black creature enters the battlefield under your control, target creature gains intimidate until end of turn. (It can't be blocked except by artifact creatures and/or creatures that share a color with it.)

{B}: Regenerate Skeletal Wurm.

You have no maximum hand size.

{T}: Prevent the next 1 damage that would be dealt to target creature this turn.

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

{2}, {T}, Sacrifice Stonespeaker Crystal: Exile any number of target players' graveyards. Draw a card.

({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 {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 {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 {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

Flying

Taborax, Hope's Demise has lifelink as long as it has five or more +1/+1 counters on it.

Whenever another nontoken creature you control dies, put a +1/+1 counter on Taborax. If that creature was a Cleric, you may draw a card. If you do, you lose 1 life.

Indestructible

When The One Ring enters the battlefield, if you cast it, you gain protection from everything until your next turn.

At the beginning of your upkeep, you lose 1 life for each burden counter on The One Ring.

{T}: Put a burden counter on The One Ring, then draw a card for each burden counter on The One Ring.

Equipped creature has "{2}, {T}: This creature deals 1 damage to any target" and "Whenever a creature dies, untap this creature."

Whenever a Shaman creature enters the battlefield, you may attach Thornbite Staff to it.

Equip {4}

When Treasure Keeper dies, reveal cards from the top of your library until you reveal a nonland card with mana value 3 or less. You may cast that card without paying its mana cost. Put all revealed cards not cast this way on the bottom of your library in a random order.

Trigon of Corruption enters the battlefield with three charge counters on it.

{B}{B}, {T}: Put a charge counter on Trigon of Corruption.

{2}, {T}, Remove a charge counter from Trigon of Corruption: Put a -1/-1 counter on target creature.

{2}, {T}: Tap target creature.

Triskelion enters the battlefield with three +1/+1 counters on it.

Remove a +1/+1 counter from Triskelion: It deals 1 damage to any target.

Whenever an opponent draws a card, Underworld Dreams deals 1 damage to that player.

Return up to two target creature cards from your graveyard to your hand.

Draw a card.