msem-instigator

{B}, Remove a time counter from a permanent you control: Target player loses 1 life.

Up to two target creatures you control each get +1/+0 and gain menace until end of turn.

Destroy target creature or planeswalker.
Fuse (You may cast one or both halves of this card from your hand.)

Doom deals 3 damage to any target and you gain 3 life.
Reconstruct {3}{B}{B} (You may cast this from your graveyard for its reconstruct cost reduced by the mana value of a permanent you sacrifice as you cast it this way. Then exile this.)
You may cast Doom from exile by paying {4}{B}{B}{B} rather than its mana cost. If you do, shuffle it into your library instead of putting it anywhere else as it resolves.

When Doom Cultist dies, target player loses 2 life and you gain 2 life.

Deathtouch
When Doomed Explorer dies, create a Treasure token. (It's an artifact with “{T}, Sacrifice this artifact: Add one mana of any color.”)

Enchant creature
Enchanted creature gets -2/-2.
At the beginning of the upkeep of enchanted creature's controller, that player discards a card.

Menace
When Doomed Questant enters, each opponent sacrifices a creature and discards a card.

When Doomed Widow dies, create a 1/1 white Spirit creature token with flying.

Whenever Doomsower or another Human you control dies, you draw a card and you lose life equal to that creature's power.

When Doomstep Giant enters, each player sacrifices a land.

Enchant creature
When Double Arming enters, put a +1/+1 counter on enchanted creature.
Enchanted creature has menace.
{5}: Return Double Arming to its owner's hand.

This spell costs {2} less to cast if you control a Rogue.
Target opponent discards two cards.

Enchant opponent
When Down with the Ship enters, enchanted player discards a card unless they sacrifice a creature.
{1}{B}, Sacrifice Down with the Ship: Return target creature card from your graveyard to your hand.

Return target creature card from your graveyard to your hand.
Satrapycycling {2} ({2}, Discard this card: Search your library for a Satrapy card, reveal it, put it into your hand, then shuffle.)

Menace
Whenever Dragon's Twisted Shadow attacks and isn't blocked, it gets +4/+0 until end of turn.

Drakon Nightshade can't block.
When Drakon Nightshade dies, scry 1.

Target creature gets -2/-1 until end of turn. When it dies this turn, its controller loses 5 life.

{1}, Sacrifice another creature: Put a +1/+1 counter on Dread Cabalist and on up to one target legendary creature. Activate only as a sorcery.

This spell costs {1} less to cast for each card put into your graveyard from anywhere this turn.
At the beginning of each player's upkeep, that player loses 1 life, discards a card, and sacrifices a creature.

Deathtouch
Whenever Dreadful Gorgon attacks, target attacking creature with lesser power gains deathtouch until end of turn.

Flying
When Dreadworld Demon enters, each opponent may have you draw a card. Each player who doesn't loses 3 life. You gain life equal to the life lost this way.

Whenever a spell or ability causes an opponent to draw a card, draw a card unless that player pays 1 life.

{1}{B}, Mill three cards: Return Dredging Aberration from your graveyard to your hand.

Return up to one target creature card from your graveyard to the battlefield tapped. You gain 2 life.
Tether (Then if you cast this from your hand, you may exile it tethered to a creature you control. When it dies, you may cast this from exile without paying its mana cost.)