Remove All Doubt-
Instant
Exile any number of target nonland permanents.
Eishin stood on the highest peak, looking down on the world. Long had they questioned his dominion, and long would their silence echo.

Colorless

Frozen Mox
Artifact
~ enters the battlefield with three stun counters on it.
: Add .

Guiding Post -
Artifact
When ~ enters the battlefield, scry 1.
Whenever a land enters the battlefield under your control tapped, you may sacrifice ~ and untap it.

Buzzbot
Artifact Creature - Insect (U)
Ubiquitous (This costs less to cast for each generic mana among the mana costs of permanents you control.)
Flying
"Useful little pests."
—Mishra
1/1

Unfinished Clay

Artifact Creature - Golem (C)
3/3

Prototype 0/3

"Darn it, I knew I forgot something."
-Tawnos

Open The World's Eye-
Sorcery
Search your library for up to two lands that can't produce colored mana, reveal those cards, put one onto the battlefield tapped and the other into your hand, then shuffle.
"Will it work?" asked Ugin, surveying the plane-wide trap. Karn nodded, and said nothing.

Opaline Myr
Artifact Creature - Phyrexian Myr
: Add X mana of any one color, where X is this creature's base power.
[3/3]
Prototype - [1/1]

Clayscale Centerpiece

Artifact Creature - Wurm (U)
6/6

Prototype 0/6

"Was there something else I forgot?"
-Tawnos

Hidden Cache —
Artifact — Treasure (R)
When you cast Hidden Cache from exile, if it was exiled by a permanent with hideaway, create five tokens that are copies of it.
, Sacrifice Hidden Cache: Add one mana of any color.

Skipped

Obsidian Demon —
Artifact Creature — Demon (M)
Flying, trample, haste
When Obsidian Demon enters the battlefield, target opponent creates a 4/4 colorless Angel artifact creature token named Platinum Angel with flying and "You can’t lose the game and your opponents can’t win the game."
13/4

Cephalomaniac
Artifact Creature - Octopus
When ~ enters the battlefield, exile up to eight target nonland permanents instead until ~ leaves the battlefield instead.
Whenever a spell or ability targets ~, you may return a permanent card exiled with ~ to the battlefield under its owner's control. If you do, counter that spel or ability.
[8/8]

Thought I was in Rarity!

Slagheap Monstrosity —
Artifact Creature — Construct Horror (R)
Trample
Slagheap Monstrosity gets +1/+1 for each card in your graveyard.
0/0

Ainok Patrol
Creature - Dog Soldier
When ~ enters the battlefield, it gets +2/+2 until the beginning of your next upkeep.
[1/1]

Expert Battlehand
Creature - Human Soldier (U)
Expert Battlehand gets +1/+1 for each modification attached to creatures you control. (Equipment, Auras you control, and counters are modifications.)
"The gods gifted us with two hands and enough weapons to keep them occupied.
1/1

Soul-Guide Preacher-
Creature-Human Priest
When Soul-Guide Preacher enters the battlefield, exile up to one target card in a graveyard.
Whenever a card leaves a graveyard, gain 1 life.
There is no life without afterlife, no grave without rest.
2/2

Ghost in the Machine
Instant {U}
Destroy target artifact. Create a 2/2 black Spirit creature with flying.

Act of Mercy
Sorcery
Choose one:

• Destroy all creatures.
• Any number of target players choose a creature card in their graveyard. Return those creatures to the battlefield.

Entwine
"To free them from the burden of life or to show them the rewards it held from them . . . which is the kinder gesture?"

Remember the Titans
Sorcery (R)
Return up to two target creature cards with mana value 6 from your graveyard to the battlefield.
“Get back in there! You know what I’m talking about. You can’t be afraid of him!”

A Thousand Lights-
Instant
Tap all creatures you don't control. Exile A Thousand Lights. You may cast it from exile at any time by paying instead of paying its mana cost.
Villagers, lacking the words to explain Entrati's arrival, were left only with the image of explosions in the sky.

The Blade of Arteruem Brightfoot
Creature - Archon
Flying
When you cast the Blade of Arteruem Brightfoot, Look at the top eight cards of your library. You may put any plains from among those cards onto the battlefield under your control. You may reveal any number of cards with mana cost 1 from among those cards and put them into your hand. Then put any number of them on the bottom of your library and the rest on the top in any order.
8/8