Mark of Catastrophe
Enchantment ─ Aura Rune (R)
Enchant permanent
When Mark of Shadows enters the battlefield, draw a card.
If enchanted permanent is a creature, it gains "Sacrifice this creature: Draw a card and lose a life."
If enchanted permanent is an Equipment, equipped creature gains "Sacrifice equipped creature: Draw a card and lose a life."

Wake Up Call
Sorcery
Each player discards their hand and draws four cards. Until end of turn, Clues gain ", Sacrifice this Clue: Add ."
"Time to see the truth, sheeple!"

Call in Debts
Enchantment ─ Aura (R)
Enchant creature or artifact
You control enchanted permanent.
Sacrifice two Treasures: Destroy Call in Debts. Any player may activate this ability.

Debtkeeper Deacon
Creature — Human Cleric
When Debtkeeper Deacon enters the battlefield, target opponent gets a debt counter, then you gain 1 life for each debt counter that player has. (At the beginning of a player with debt's end step, that player may pay to lose X debt counters. Then, if they still have debt, they lose 1 life.)
"Well-kept books are sacred. There is little certain in life, and to be sure of what you owe and what you are owed is a blessing from the Church."
1/1

Arch Deacon Vorbis
Legendary Creature - Human Cleric (R)
Ward - Discard a creature card.
Other creatures you control have deathtouch.
4/4
Vorbis changed people. Sometimes he changed them into dead people. But he always changed them.

Ride Into the Sunset
Instant
This spell costs less to cast if there are no creatures or planeswalkers on the battlefield other than the target.
Exile target creature or planeswalker.
Some roads are always lonely. Some roads are lonely because of the rider.

Sunset of Civilization
Enchantment (R)
Creatures you control get +X/+0 where X is their colored mana value.

Civilization Smasher

Creature -- Cyclops Berserker (R)
Haste
When Civilization Smasher attacks, each opponent sacrifices an artifact with the greatest mana value among artifacts they control.
5/4

Doomsday Shard
Artifact (M)
, sacrifice Doomsday Shard: Lose half your life, rounded up. Add three mana of any color.
I know, I know. You sort of have to call it Lotus Shard. But I liked Doomsday better. And it's probably still broken.

Mox Shard
Artifact
, pay 3 life: Add a mana of any color.

Doomed Incarnation
Enchantment - Aura
Enchant creature
Enchanted creature has -2/-0 and "When a creature enters the battlefield under your control, sacrifice this creature."
Life's inexorability seldom pertains to the individual.

Practical Incarnation

Legendary Creature - Incarnation
, Sacrifice another creature: Regenerate Practical Incarnation
When Practical Incarnation dies, exile it and you get an emblem with "Legendary Incarnations you control have "When this creature enters the battlefield or attacks, draw a card if there are four or more creature cards in your graveyard.""
3/3

Practical Murder
Sorcery
Destroy target creature. If an ability of that creature was activated this turn, add .
"I'm not keen on murder. But my accountant tells me I shouldn't necessarily be against it, either."

Bloody Murder

Instant
Destroy target creature. Roll a six-sided die and create that many blood tokens.

Trail of Blood

Artifact -- Blood Clue (C)
When Trail of Blood enters the battlefield, you may discard a card. If you do, draw a card.
, Sacrifice Trail of Blood: Draw a card.

Off the Record
Instant
Exile target spell. Its controller returns a card from their graveyard to their hand.

Written Record
Instant (C)
Written Record costs you less to cast for each spell that shares a name with the spell you are targeting in graveyards.
Counter target spell.
Well documented is well prepared.