When this creature dies, all creatures get -1/-1 until end of turn.
, Sacrifice this creature: Draw a card.

Whenever another creature enters, its controller loses 1 life.

(You may cast either half. That door unlocks on the battlefield. As a sorcery, you may pay the mana cost of a locked door to unlock it.)
When you unlock this door, mill three cards, then return a creature card from your graveyard to the battlefield.

When this creature dies, destroy target land.

When this artifact enters, look at the top four cards of your library. Put two of them into your hand and the rest into your graveyard. You lose 2 life.
, , Collect evidence 3: Each opponent loses 3 life unless they discard a card or sacrifice a creature.

When this creature enters, choose one —
• Executioner Round — Destroy target creature.
• Hyperfrag Round — Creatures target player controls get -2/-2 until end of turn.

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

When this creature dies, discover 3.

Return target creature card from your graveyard to the battlefield with an additional +1/+1 counter on it.
Mayhem

Flying
Ward — Pay 2 life.
When this creature enters, remove all counters from up to one target creature.

Whenever a player casts a green or white spell, that player discards a card.

Flying
When this creature enters, each player loses 2 life.

Converge — When this creature enters, each opponent loses X life and you gain X life, where X is the number of colors of mana spent to cast this spell.

Deathtouch
Whenever Radioactive Man deals combat damage to a player, that player loses half their life, rounded up.

When this creature enters, target creature you control gets +1/+0 and gains indestructible until end of turn.

Exploit
When this creature exploits a creature, create two 2/2 black Zombie creature tokens.

When this creature enters, you may sacrifice up to three Zombies. When you sacrifice one or more Zombies this way, each opponent sacrifices that many creatures of their choice.

Deathtouch
At the beginning of combat on your turn, choose an opponent at random. This creature attacks that player this combat if able.
Whenever this creature deals combat damage to a player, that player loses half their life, rounded down.

Exile target creature, Vehicle, or nonbasic land. Scry 1.

Destroy target creature that's one or more colors.

Infect
Whenever a source deals damage to this creature, that source's controller gets a poison counter.

As an additional cost to cast this spell, sacrifice a creature.
Choose target creature card in your graveyard. Return that card and the sacrificed card to the battlefield under your control at the beginning of your next upkeep. Exile Rescue from the Underworld.

Return target creature card from your graveyard to the battlefield. If it's an Elf, create two 1/1 green Elf Warrior creature tokens.
Foretell

Whenever a creature an opponent controls dies, create a Treasure token.
At the beginning of your upkeep, if you control ten or more Treasures, you win the game.

When this creature enters, if was spent to cast it, target player skips their next combat phase.
This creature can't block.

This spell costs less to cast if it targets a creature card with mana value 3 or less.
Return target creature card from your graveyard to the battlefield. You gain 2 life.

Ribbons of Night deals 4 damage to target creature and you gain 4 life. If was spent to cast this spell, draw a card.

Return target creature card from your graveyard to the battlefield.

Put target creature card from a graveyard onto the battlefield under your control. That creature is a black Zombie in addition to its other colors and types.

Choose one —
• Draw cards equal to the greatest power among creatures you control. You lose life equal to the number of cards drawn this way.
• All creatures get -3/-3 until end of turn.