Steamveil Model enters with a +1/+1 counter on it.

Flash
Whenever Thassa's Tideshaper attacks, defending player mills two cards and you draw a card. Then discard a card unless defending player has eight or more cards in their graveyard.

When Wandering Hedge-Mage enters, you may return target instant or sorcery card from your graveyard to your hand. If it had mana value 4 or greater, create a Treasure token.

Once each turn, when you cast an instant or sorcery spell, you may create a 1/0 blue Elemental creature token.
Elementals you control get +1/+1.
{2}{U}, Sacrifice an Elemental: Tap up to one target creature. Scry 1.

Whenever a creature entering the battlefield under your control causes an ability of a permanent you control to trigger, draw a card. This ability triggers only once each turn.

Menace
Spellcharge 3
You may cast Archaic Straggler from your graveyard if you've spent at least three mana to cast spells this turn.

When Blackout Grifter enters, each opponent loses 1 life and you gain 1 life.
Cybersoul {3}{B}

When Codename: Ant dies, you may search your library for a card named Codename: Ant, reveal it, put it into your hand, then shuffle.

Gato Shinygrabber can't block.
When Gato Shinygrabber dies, you may put a +1/+1 counter on target creature you control.

Deathtouch
Whenever a creature you control with deathtouch deals damage to a planeswalker, destroy that planeswalker.
Whenever a creature you control deals combat damage to a player, put a deathtouch counter on it. If it already had deathtouch, put a +1/+1 counter on it instead.

Menace
Indulgence
Whenever you indulge, put a +1/+1 counter on Lavish Host.

Flying
When Lofty Voter enters, make a pledge.

Reach, lifelink

Once each turn, when you cast a black spell with mana value less than your devotion to black, you may draw a card and lose 1 life.

Whenever you cast a spell, if mana from an artifact source was spent to cast it, you may pay 1 life. If you do, draw a card. Do this only once each turn.

Lifelink
Whenever Secluded Gorgon dies, you may bless target creature.

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

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

When Photonic Cobra dies, create a 1/1 red and green Elemental creature token.

Whenever you cast a spell that targets Rathomar Herder, choose one. If Rathomar Herder is attacking, you may choose both instead.
• Create a 1/1 white Human creature token.
• Creatures you control get +1/+0 until end of turn.

At the beginning of combat on your turn, you may pay {1}. If you do, create a 1/1 red and green Elemental creature token. It gains haste. Sacrifice it at end of combat.

When Resourceful Hireling enters, choose one —
• Create a 0/0 colorless Robot artifact creature token with a +1/+1 counter on it.
• Create a Treasure token.

Prowess
When Satyr Arsonist enters, destroy target nonbasic land. Its controller may search their library for a basic land card, put it onto the battlefield tapped, then shuffle.

Flying
Short-Fused Firebird attacks each combat if able.
Whenever Short-Fused Firebird attacks, the next flashback cost you pay this turn costs {2} less.

Trample
Whenever Skophos Raid-Veteran deals combat damage to a player or planeswalker or becomes the target of a spell you control, create a tapped Treasure token.