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

When Stehlian Reverend enters, put a +1/+1 counter on target creature.
Cybersoul {4}{W}

Haste
Amity — Whenever you attack with Stitches and exactly one other creature, create a 2/2 Toy artifact creature token with defender, then tap all Toys you control. They're attacking.
At the beginning of your end step, if you didn't create a Toy this turn, transform Stitches.

Trample
Amity — Whenever you attack with Stitches, Orphaned and exactly one other creature, transform Stitches at the beginning of the next turn's upkeep.

Target creature gets -2/-2 until end of turn.

Menace

Ward {2}
Amity — Whenever Surging Mudskipper attacks, surveil 1. You may play that card from your graveyard this turn. If exactly one other creature attacked with it, this ability triggers three times instead.

You may cast spells as though they had flash.
Whenever you cast a spell, you may tap or untap target nonland permanent.

First strike
Cybersoul {4}{W}

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.

Target creature gains flying until end of turn. Draw a card.

Enchant creature
As long as you control enchanted creature, it gets +2/+2.
Enchanted creature can't block.

Amity — Whenever you attack with Temperamental Chick and exactly one other creature, Temperamental Chick deals 1 damage to up to one target creature. When Temperamental Chick deals combat damage to a player this combat, you may transform it.

First strike
Amity — Whenever Tempered Fowl attacks, it deals 1 damage to up to one target creature. It can't block this turn. If exactly one other creature attacked with it, this ability triggers three times instead.

Choose two target creatures controlled by the same player. That player sacrifices one of them of their choice.

Teslahammer Giant enters with a +1/+1 counter on it.

Enchant player
Enchanted player can't gain life.
At the beginning of your upkeep, enchanted player loses 1 life and you gain 1 life.

Enchant creature
Enchanted creature gets +1/+1 for each enchantment you control.

Enchant land
Enchanted land has “{T}: Add two mana in any combination of colors. You gain 1 life.”

Indestructible
Whenever a player attacks with two or more creatures, you draw a card and you create a Treasure token.
Whenever a player casts their second spell each turn, create a 1/1 colorless Cyborg artifact creature token, then put a +1/+1 counter on each Cyborg you control.

Flash
Enchant creature
Enchanted creature gets +2/+2.

Tidewake Walker enters with a hexproof counter on it.

When Together in Arms enters, create two 1/1 colorless Soldier creature tokens.
You controlled a spell that targeted a creature you controlled this turn.
You controlled an ability that targeted a creature you controlled this turn.

When Towering Sentinel enters, for each kind of counter among permanents you control, put a counter of that kind on Towering Sentinel, then add {G} or {U}.

{1}, Remove a +1/+1 counter from Traveler of Dawn: Exile target creature. Return that card to the battlefield under its owner's control at the beginning of the next end step.