Origami Dragon is still the best design on this forum.

Nibble -
Sorcery | C
Target opponent discards a card. If a noncreature card is discarded this way, create a 1/1 black Rat creature token.
Go anywhere. Even the filthiest, most uninhabitable place you can imagine. And you'll find a rat.

Call Bluff
Sorcery
Target player names a card. Then, you choose one:
-That player reveals their hand and discards all cards with the chosen name.
-That player reveals their hand, and you chose a nonland card from it with a different name. That player discards that card.

...
BelangiaJo and ty each go up a point, remaining tied with each other, and join the tie with Rush_Clasic and Echo_Robin at 18.

Cato goes up to 6 points, only two away from getting inducted!

Open Options
Sorcery (U)
Look at the top three cards of your library. You may put one of them into your hand, or return Open Options into your hand. Shuffle your library.
It can be important to keep them that.

Drag from the Abyss
Sorcery
Return target creature card from a graveyard to the battlefield with thirteen -1/-1 counters on it.
"Do not thank me yet." — Zariel, Duke of Avernus

Fade into Fable —
Enchantment — Aura (U)
Enchant creature
Enchanted creature is a Saga enchantment in addition to its other types and has "I - This creature gets +2/+2 until end of turn", "II - This creature gains indestructible until end of turn", and "III - Draw a card".
When Fade into Fable enters the battlefield, put a lore counter on enchanted creature.
All good stories have an end.

Anafenza's Last Stand
Legendary Enchantment (R)
You can't lose the game unless it is your end step.
"I can't imagine a a fate worse than being betrayed by my own family, Oret, but at least I can die proud of my service to the Abzan."

The Great Balloon Abduction —
Enchantment — Saga Aura (U)
Enchant creature
I - The Great Balloon Abduction gains "Enchanted creature has flying."
II - The Great Balloon Abduction gains "Enchanted creature can only block creatures with flying."
III - Exile enchanted creature.

Clachan Gate
Artifact Creature - Equipment Wall | U
Defender
Equipped creature gets +0/+4.
Reconfigure Giant
Unfortunately for Goldmeadow, its mighty fortifications were just the right size for Barrag's arm.
0/4

Craniarum
Creature - Brain
Flying
If you would draw a card, you may put a copy of ~ onto the battlefield instead.
If you would discard a card, you may sacrifice ~ instead.
Othik never had a problem acquiring materials for his research. Truly, those ghoulcallers didn't know the potential of what they were wasting.
1/1

Search for Clues
Sorcery
Draw two cards. Then, if you haven't discarded a card yet this turn, discard a card.
"I feel as if we're still missing a very important piece of the puzzle here."

Read the Gravestones
Sorcery (U)
For each spent to cast Read the Gravestones, you gain 1 life and put a 1/1 white Spirit creature token with flying onto the battlefield.
For each spent to cast Read the Gravestones, you lose 1 life and draw a card.
A marker for those long past, clinging to the very last vestiges of their legacy.

Sataras, Broker of Souls
Legendary Creature - Demon (M)
Flying
If X is less than four, Sataras enters the battlefield with debt counters on it equal to the difference.
At the beginning of your upkeep, you lose 2 life for each debt counter on Sataras.
"You will give me my due, mortal, one way or another."
6/6

Take My Hand!
Instant (C)
If you control another creature with flying, target creature you control gains flying until end of turn.
Draw a card.
"Let me show you the view."

Manic Thespians
Creature - Human Wizard (R)
You may have Manic Thespians enter the battlefield as a copy of any creature on the battlefield.
Unearth
Anything for an encore.
0/0

Gambling Den
Land (U)
: Add to your mana pool.
Pay 1 life, : Flip two coins. If both are heads, draw a card.
Rakdos thugs may look dumb, but they’re experts at bleeding you dry.

Desperate Pact
Enchantment
Cumulative upkeep - Sacrifice a creature
Creatures you control are indestructible. You can't lose the game and your opponents can't win the game.
"They'll hate us for this."
"Yes, but they'll still be alive to do so."

Cerberus Engine
Artifact Creature - Hound Construct (R)
Double strike
Whenever Cerberus Engine attacks, it deals damage equal to its power to defending player.
Fire and brimstone meets oil and steel.
3/3

Blasphemous Altar
Artifact (R)
Demon spells you cast have Human offering. (You may cast Demon spells any time you could cast an instant by sacrificing a Human and paying the difference in mana costs between the Demon and the sacrificed Human. Mana cost includes color.)
Ritualists spend hours practicing the incantations and memorizing the diagrams. But ultimately, nothing is as important as blood.

Spreading Darkness
Sorcery (R)
Destroy target creature.
Overload
"The power to strike down thine enemies," the demon agreed. It did not mention however, the ability to control such power.

Faithful Companion -
Creature - Hound Spirit
When Faithful Companion enters the battlefield, if you cast it from your hand, put a loyalty counter on another creature you control.
At the beginning of your end step, if a creature you control has a loyalty counter on it, return Faithful Companion from your graveyard to the battlefield tapped.
Some dogs always find their way home.
2/1

Clachan Gate
Artifact Creature - Equipment Wall | U
Defender
Equipped creature gets +0/+4.
Reconfigure Giant
Unfortunately for Goldmeadow, its mighty fortifications were just the right size for Barrag's arm.
0/4

Straw Decoy
Artifact Creature - Scarecrow | U
Substitution (, Return a blocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking. Each creature that was blocking the returned attacker blocks this card.)
The guard grasped at Higure's fleeing form, only to catch a handful of hay.
0/4

Underworld Chariot
Artifact - Vehicle | U
When Underworld Chariot enters the battlefield from a graveyard, create a 2/2 black Zombie creature token.
Crew 2
Unearth
Ride or die.
4/2

Brave the Darkness
Instant | U
Target creature gains hexproof and indestructible until end of turn.
As long as it's night and Brave the Darkness is in your graveyard, it has flashback .
Some amongst the night watch draw their strength from their faith in the Archangel. Others, from the knowledge that no matter how bad things get, dawn will inevitably come.

Green-Eyed Monster
Legendary Creature - Ouphe | R
Trample
Whenever a player casts a spell that could target Green-Eyed Monster but doesn't, put a +1/+1 counter on Green-Eyed Monster.
In his desire to collect all magicks, an ancient elven king once willing took on a witch's curse. Did the spell corrupt his mind as well as his body? Or did the transformation merely reveal his true nature?
2/2

Cavern Bellower
Creature - Beast | R
Echo
When Cavern Bellower's echo cost is paid, create a token that's a copy of it.
Deep underground, you hear cries from all directions. Is it one beast stalking you, or many?
3/3

Shambling Surveyor
Creature - Zombie Scout | R
When Shambling Surveyor enters the battlefield, it explores.
Retrace
As Temil passed away, the search for the Golden City became no longer just his life's work.
3/1

Dread Reflection
Creature - Dragon Nightmare | R
Flying
If a creature would enter the battlefield under your control from a graveyard, it enters as a copy of Dread Reflection instead.
Doom casts its own flickering shadow.
6/6

Quiet Speakeasy
Land | R
When Quiet Speakeasy enters the battlefield, you gain 1 life.
, Pay 1 life: Add , , or .
First round's on me, kid.

Temporal Intervention
Sorcery | R
Untap all permanents you control. End the turn.
Miracle
Those who pray to the god of time never find themselves unprepared.

Binding Glyph
Artifact | U
When Binding Glyph enters the battlefield, exile target creature until Binding Glyph leaves the battlefield.
Cycling
Unearth
"The excavation project has run into unforeseen difficulties." - Progress report from Argivian Archeological Dig Site #6

So uh... I actually used to have two alt accounts that have won CotW in the past.

Though you'll have to just take my word for it

I'll take your word for it! Do you remember their names? They should be on the leaderboard. I can consolidate their wins into yours.

my namesis revealed :o