Whenever a creature an opponent controls enters, you may have that player lose 1 life.

When this creature enters, 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.)

Circle of Death — {5}{B}: Roll a d20. 1—9 | Each opponent loses 2 life. 10—19 | Each opponent loses 2 life and you gain 2 life. 20 | Each opponent loses 2 life and you gain 2 life. Create two Treasure tokens. (They're artifacts with "{T}, Sacrifice this token: Add one mana of any color.")

Whenever you gain life, each opponent loses 1 life.

Whenever you gain life, target opponent loses that much life.

Enchant creature Whenever enchanted creature is dealt damage, it deals that much damage to its controller.

Lifelink

Whenever a player casts a black spell, you may gain 1 life.

Enchant creature Enchanted creature has lifelink and "Whenever a creature an opponent controls dies, put a +1/+1 counter on this creature." (Damage dealt by a creature with lifelink also causes its controller to gain that much life.)

Whenever an opponent loses life, you gain that much life.

Enchant creature Enchanted creature gets +2/+2 and has lifelink.

Lifelink (Damage dealt by this creature also causes you to gain that much life.)

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

Flying At the beginning of each opponent's end step, that player chooses up to two creatures they control, then sacrifices the rest.

Enchant creature Enchanted creature gets +1/+3 and has deathtouch. (Any amount of damage it deals to a creature is enough to destroy it.)

When this creature enters, choose one — • Antimagic Cone — Each opponent sacrifices an enchantment of their choice. • Fear Ray — Creatures you control gain menace until end of turn. (A creature with menace can't be blocked except by two or more creatures.)

Corrupt deals damage to any target equal to the number of Swamps you control. You gain life equal to the damage dealt this way.

Enchant player At the beginning of enchanted player's upkeep, that player sacrifices a creature or planeswalker of their choice. If the player can't, they lose 5 life.

Exile all creature cards from target player's graveyard. You gain 3 life for each card exiled this way.

Spend only black mana on X. Drain Life deals X damage to any target. You gain life equal to the damage dealt, but not more life than the player's life total before the damage was dealt, the planeswalker's loyalty before the damage was dealt, or the creature's toughness.

Enchant creature You control enchanted creature. At the beginning of your upkeep, enchanted creature deals 1 damage to its owner.

Kicker {B} (You may pay an additional {B} as you cast this spell.) When this creature enters, if it was kicked, target player sacrifices a creature of their choice.

When this creature enters, each player sacrifices a creature of their choice.

Equipped creature has deathtouch. Whenever equipped creature deals combat damage to a player, that player loses half their life, rounded up. Equip {3}

Target creature gets -6/-6 until end of turn. You gain 2 life.

Target opponent sacrifices a creature of their choice. You gain life equal to that creature's toughness.

Exile target card from a graveyard. Draw a card.

Whenever you discard a card, choose one that hasn't been chosen this turn — • Draw a card. • Create a Treasure token. • Each opponent loses 3 life.

Each other player discards a card. You draw a card for each card discarded this way.

Each opponent loses X life. You gain life equal to the life lost this way.

Flying (This creature can't be blocked except by creatures with flying or reach.) Nightmare's power and toughness are each equal to the number of Swamps you control.

Flash (You may cast this spell any time you could cast an instant.) Vigilance Indestructible (Damage and effects that say "destroy" don't destroy this creature. If its toughness is 0 or less, it's still put into its owner's graveyard.)

Flash Indestructible When Mithril Coat enters, attach it to target legendary creature you control. Equipped creature has indestructible. Equip {3}

Flash Tragic Backstory — Cast this spell only if a creature died this turn.

{T}: Add one mana of any color in your commander's color identity.

Add {B}{B}{B}.

{T}: Add one mana of any color that a land an opponent controls could produce.

Choose a color. Target player reveals their hand and you choose a card of that color from it. That player discards that card.

Heroic — Whenever you cast a spell that targets this creature, each opponent discards a card.

(Gain the next level as a sorcery to add its ability.) When this Class enters, each opponent discards two cards unless they discard a nonland card. {B}: Level 2 At the beginning of each opponent's upkeep, if that player has one or fewer cards in hand, they lose 2 life. {3}{B}: Level 3 At the beginning of your draw step, draw an additional card for each opponent who has one or fewer cards in hand.

Intimidate (This creature can't be blocked except by artifact creatures and/or creatures that share a color with it.) Sacrifice this creature: Target player discards two cards. Activate only as a sorcery.

When this enchantment enters, you become the monarch. At the beginning of your upkeep, each opponent loses 3 life unless they discard a card. If you're the monarch, instead each opponent loses 6 life unless they discard two cards.

Each player discards all the cards in their hand, then draws that many cards minus one.

When this creature dies, target opponent discards a card.

Target opponent reveals their hand. You choose a creature or planeswalker card from it. That player discards that card.

When this creature enters, target player reveals a number of cards from their hand equal to your devotion to black. You choose one of them. That player discards that card. (Each {B} in the mana costs of permanents you control counts toward your devotion to black.)

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

Whenever this creature deals combat damage to a player, you may sacrifice it. If you do, that player discards three cards. Morph {1}{B} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)

Kicker {4} (You may pay an additional {4} as you cast this spell.) Target player discards a card. If this spell was kicked, that player discards three cards instead.

Flying When this creature enters, each opponent discards a card.

Target player discards two cards.

Target player discards a card for each Swamp you control.

When this creature enters, target player discards two cards. Evoke {3}{B} (You may cast this spell for its evoke cost. If you do, it's sacrificed when it enters.)

Whenever an opponent casts a spell, that player loses 5 life unless they discard a card.

When this creature enters, target opponent discards a card.

{1}{B}, {T}: Target player discards a card. Activate only during your turn.

Return X target creature cards from your graveyard to your hand.

{2}, {T}: You gain 5 life. Shuffle this artifact and your graveyard into their owner's library.

{3}{B}, Sacrifice this enchantment: Return up to three target creature cards from your graveyard to your hand.

When this creature enters, return a Zombie card at random from your graveyard to your hand.