Menace
Other creatures you control with menace get +1/+1.
Whenever a creature you control with menace becomes blocked, each opponent loses 1 life.

Flying
Favored
Whenever another legendary nontoken creature you control dies, you may exile it. If you do, create a token that's a copy of it, except it has no name, it isn't legendary, and it is a Zombie.

Flying
Drop — When Soul Melter enters, if you didn't cast any creature spells during your last turn, each opponent loses 2 life and you gain 2 life.

Return up to three target cards from your graveyard to your hand. Exile Soulless Archive.

Flash

Whenever Steelhorn Crusher or another artifact you control enters, artifact creatures you control gain menace until end of turn.

Favored
Whenever your Champion attacks, it gets +2/+0 until end of turn.

Choose one or both —
• Return target creature card from your graveyard to your hand.
• Return target creature card in your graveyard that was put there from the battlefield this turn to your hand.

Target creature gets -3/-3 until end of turn. If that creature would die this turn, exile it instead.

Whenever you cast your first spell during each opponent's turn, scry 2.

Flying
Whenever Synthetic Specter deals combat damage to a player, that player discards a card. Then if they have no cards in hand, put a +1/+1 counter on Synthetic Specter.

Tempting Darkfiend enters with a flying counter on it unless an opponent pays 2 life. The same is true for menace, deathtouch, lifelink, and indestructible counters.

Enchant player
At the beginning of each end step, enchanted player gains life equal to the amount of life they've gained this turn, then loses life equal to the amount of life they've lost this turn.

Each opponent discards two cards, then mills two cards.
Each opponent loses 2 life and you gain 2 life.
For each opponent that has eight or more cards in their graveyard, exile a card from that player's graveyard. You may cast cards exiled this way this turn, and mana of any type can be spent to cast cast it.

Decayed
You may cast The Venerable Veteran from your graveyard.

When Thornlasher Mortis enters, mill two cards.
Whenever one or more cards leave your graveyard, create a 1/1 green Saproling creature token. This ability triggers only once each turn.

Destroy target creature. If that creature entered this turn, scry 2.

At the beginning of each player's upkeep, that player discards a card or sacrifices a nontoken, nonland permanent. If Tithe to the Machine was sacrificed this way, create a 2/2 black Zombie artifact creature token for each card type among cards integrated onto it. Otherwise, integrate that card.

As an additional cost to cast this spell, sacrifice a creature.
Return to the battlefield target creature card from your graveyard with mana value less than or equal to 2 plus the sacrificed creature's mana value.

{B}, Sacrifice another creature: Create a tapped Treasure token. Scry 1.
{1}{B}: Exile two target creature cards from graveyards. You may cast up to one of those cards for as long as they remain exiled.

This spell costs {3}{B} less to cast if a creature died this turn.
Destroy target creature.

As long as it's your turn, Ultraviolet Maniac has lifelink.
{VP}{VP}{VP}: Until end of turn, whenever you gain life, each opponent loses that much life.

Deathtouch
{1}{B}, {T}, Pay 1 life: Create a Food token.
Once each turn, when you sacrifice one or more non-Rat permanents, you may pay {B}. If you do, create a 1/1 black Rat creature token with “This creature can't block.”

Deathtouch
Whenever another creature you control dies, you may have Underhanded Revolutionary dare 3.

Flying
Ward—Discard a card.
You have “Ward—Discard a card.”
At the beginning of your upkeep, your life total becomes equal to your devotion to black.