Solidarity
Londel Sharpshot can't be blocked by creatures with power 2 or less.

Menace
{B}{R}: Target creature with power 4 or less can't be blocked by more than one creature this turn.

When Lost Resistor dies, you gain 1 life.
Cybersoul {X}{X}{W}

Indulgence
When Lost in the Moment enters, draw a card then discard a card.
Whenever you indulge, each opponent mills four cards.

Create X blue Shrine enchantment tokens named Unmarked Shrine with “At the beginning of your upkeep, each opponent mills a card.”
{1}{U}, Exile Lost to Memory from your graveyard: Draw two cards. Activate only if an opponent has eight or more cards in their graveyard.

Lifelink
Whenever Lurking Vyrkolakas enters or attacks, target player exiles a card from their graveyard. If a nonland card was exiled this way, put a +1/+1 counter on Lurking Vyrkolakas and you gain 1 life.

Draw two cards. If you don't control an artifact creature, you lose 3 life.

Destroy target creature or planeswalker if it has mana value 3 or less or if you control a legendary creature.

Trample
When Main Street Hooligang enters, if you control a green permanent, you may have Main Street Hooligang fight target creature.

Until end of turn, target creature gets +2/+2 and gains trample and “Whenever this creature deals combat damage to a player, return target permanent card with mana value less than or equal to the damage dealt from your graveyard to your hand.”

{T}: Add one mana of any color.
Whenever you cast a multicolored spell, untap Mana Harvesters. This ability triggers only once each turn.

Enchant land you control
Enchanted land is a 2/2 Elemental creature with vigilance, haste, and “{T}: Add two mana of different colors.” It's still a land.
If enchanted land would leave the battlefield, instead sacrifice Manifest the Lightveins and that land gains indestructible until end of turn.

When Marie Laurent enters, you may search your library for a card named Hans Nehmann or Diago Maldovo and reveal that card. If you do, shuffle, then put the card on top of it.
Legendary Allies you control have double strike.

You lose life equal to the number of cards you've drawn this turn, then draw a card. You may repeat this process any number of times.

At the beginning of combat on your turn, you may have target Advisor you control get +2/-1 until end of turn.

Mass of Remains's power is equal to the total number of permanent cards you own in your graveyard and in exile.
Spellcharge 3

Target creature you control gets +2/+1 until end of turn. It fights up to one target creature you don't control.

Target creature gains indestructible until end of turn. Teach it lifelink.

When Meeting of the Elites enters, create a tapped Treasure token.
You've sacrificed a nonland permanent this turn.

Whenever you draw your second card each turn, scry 1 then put a +1/+1 counter on Melancholic Oracle.

{1}{U/R}, {T}: Tap target creature, then gain control of it until end of turn. Activate only as a sorcery.

Exile the top three cards of your library. You may play up to two of those cards this turn.

Return target creature or enchantment to its owner's hand. If that permanent's controller has eight or more cards in their graveyard, its owner puts it on the top or bottom of their library instead.

{1}{B}, Pay 2 life: Mob Hangman dares 4.
Whenever Mob Hangman attacks, if it's a Rebel, each opponent sacrifices a creature or planeswalker unless they discard a card.

Whenever a creature you control becomes a Rebel, creatures you control get +1/+0 until end of turn.
{2}{R}: Mob Instigator dares 4.