Whenever a creature enters the battlefield, you lose 1 life and add .

Enchant creature
When Chime of Night is put into a graveyard from the battlefield, destroy target nonblack creature.

, : Reveal any number of red cards in your hand. Cinder Seer deals X damage to any target, where X is the number of cards revealed this way.

Mountainwalk (This creature can't be blocked as long as defending player controls a Mountain.)
: Colos Yearling gets +1/+0 until end of turn.

Whenever a black card is put into an opponent's graveyard from anywhere, you may draw a card.

Flying
When you control no artifacts, sacrifice Covetous Dragon.

Enchant creature
: Return enchanted creature and Disappear to their owners' hands.

When Disease Carriers dies, target creature gets -2/-2 until end of turn.

Target player gains control of target permanent you control.

Enchant creature
When enchanted creature dies, target player discards two cards.

Shroud (This creature can't be the target of spells or abilities.)

, : You may put a creature card from your hand onto the battlefield.

When you control no other creatures, sacrifice Emperor Crocodile.

Target player reveals their hand. You choose a nonbasic land card from it. That player discards that card.

Exile target nonblack creature. Search its controller's graveyard, hand, and library for all cards with the same name as that creature and exile them. Then that player shuffles their library.

Echo (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)
Sacrifice an artifact: Put a +1/+1 counter on target creature.

When False Prophet dies, exile all creatures.

Target player skips their next draw step.

Prevent all combat damage that would be dealt by target creature this turn.
Cycling (, Discard this card: Draw a card.)

Enchant creature
At the beginning of your upkeep, you may put an infection counter on Festering Wound.
At the beginning of the upkeep of enchanted creature's controller, Festering Wound deals X damage to that player, where X is the number of infection counters on Festering Wound.