Goblintrap Muck
Enchantment {R}
Whenever a Goblin attacks, it gets +1/-1 until end of turn.
something about how the muck is disgusting but the goblins kinda like it

Muck, Trap Goblin
Planeswalker - Muck (M)
Create two 1/1 red Goblin creature tokens.
You gain an emblem with "Goblin creatures you control get +1/+1 as long as you control a Muck planeswalker."
Attacking creatures get +X/-X until the beginning of your next upkeep.

FYI, if you add a + to the PW tag before 0, you get this icon instead:

Muck the Stables
Enchantment — Aura
Enchant land
When Muck the Stables enters the battlefield, tap enchanted land and put three stun counters on it.
Tap an untapped creature you control with power 4 or greater: Remove a stun counter from enchanted land.
Enchanted land has ": Create a 3/3 green Horse creature token. Put a stun counter on this land."

Seems odd to do since a Planeswalker with 0 starting loyalty would just die as a SBE but then again Force of Savagery exists in real life MtG and this is YMtC.

Anyhow

Wildmane Stallion
Creature - Elemental Horse (U)
Trample
Whenever a Horse you control attacks alone, put a +1/+1 counter on it.
Whenever a Horse you control becomes the target of a spell or ability you don't control, you may have it fight target creature you don't control.
[4/3]

Dakkon, Shadow Slayer, Jeska, Thrice Reborn

I fully thought we were in a different game. My card definitely was not a common.

Unbridled Charger
Creature — Horse (R)
Trample
As long as Unbridled Charger is equipped or enchanted, it gets -2/-2 and has vigilance and "Whenever this creature attacks, untap another target attacking creature you control. That creature gets +2/+2 and gains trample until end of turn."
4/4

Yorvo, Who Carries The World-
Legendary Creature-Giant Noble (M)
Vigilance, trample
Yorvo enters the battlefield with 6 +1/+1 counters on it.
You may cast creature spells with mana value 3 or less from your hand by removing a counter from Yorvo instead of paying its mana cost.
"True strength is lifting others."
0/0

Battle-Crazed Recruit
Creature - Goblin Soldier (C)
First Strike
Whenever ~ deals combat damage to a player, untap it.
[2/2]

Relic Reconfigurer
Creature — Human Artificer (U)
Haste
When Relic Reconfigurer enters the battlefield, exile target artifact card from your graveyard. Until end of turn, you may cast it.
"This is no Blood Age, but the Strixhaven is in danger! It is time for our past to march into battle again!"
2/2

Simple Plan
Sorcery (R)
~ deals 4 damage to each creature and each planeswalker.
Until end of turn, you gain 4 life whenever an artifact or enchantment you don't control leaves the battlefield.

Desperate Invocation-
Enchantment (M)
Flash, shroud, vanishing 3
You can't lose the game and your opponents can't win the game.
When Desperate Invocation leaves the battlefield, you lose the game.
Tiura stood alone before the Kol'Vas Horde and raised her spear. "I will die," she shouted, "but I will not die today!"

Nahiri Stonebinder
Legendary Planeswalker — Nahiri
: Create an Equipment artifact token with equip and "Equipped creature gets +1/+0."
: Create an artifact token named Hedron. It has "When this artifact enters the battlefield, exile target creature until this artifact leaves the battlefield."
: You get an emblem with "You can't lose the game as long as you control an artifact," and "Whenever you lose life, sacrifice an artifact."

Hybrid Common

Battle Formation
Instant (C)
If was spent to cast ~, you may have attacking creatures get +1/+0 until end of turn.
If was spent to cast ~, you may have blocking creatures get +1/+0 until end of turn.

Match Force for Force
Instant (U)
Target creature you control's power and toughness become equal to target creature you don't control's power and toughness.
"No punishment greater than the crime, nor lesser." — Razia, Boros Legion parun

Nikos, Victory's Herald

Legendary Creature - Human Soldier (R)
2/2

First strike
Attacking creatures you control get +X/+X, where X is their devotion to red and white.

Firesong, Cleft in Twain
Creature — Minotaur Cleric (M)
The first time you cast a spell during combat each turn, copy that spell. You may choose new targets for the copy.
A low, desolate dirge echoes between the peaks of Hurloon. Sheoldred will never pay enough.
2/3

Innkeeper's Table
Artifact (C)
, Tap an untapped creature you control: Put a +1/+1 counter on that creature. Activate only as a sorcery.
When Innkeeper's Table is put into a graveyard from play, create a Equipment artifact token named Table Leg with "Equipped creature gets +1/+0" and "Equip ".
Everyone knows you can always blow off a little steam at The Knight's Rest.

Æther Ladle
Artifact (U)
: Put an exiled card you own into your graveyard.
All great recipes require time... some more than others.

Singularity Bomb
Artifact (R)
, : Put a charge on ~.
, , Exile ~: Exile each nonland permanent with mana value equal to or less than the number of charge counters on ~. Then exile all permanent cards from all graveyards.

The Final Piece
Legendary Artifact - Clue (M)
At the beginning of your upkeep, investigate. (Create a colorless Clue artifact token with “, Sacrifice this artifact: Draw a card.”)
, Sacrifice The Final Piece: Draw a card.
, Sacrifice ten Clues: You win the game.

Land

Library Ruins
Land (C)
You may have ~ enter the battlefield tapped. If you do, draw a card.
: Add .