Eccentric Genius
Creature - Human Wizard (C)
When an artifact enters under your control you may sacrifice Eccentric Genius. If you do, draw two cards.
1/1
He gave his life to his work.

Brain Teaser
Sorcery (U)
~ deals 2 damage to any target. Draw a card.
Jump-start

Recursive Inspiration
Sorcery (R)
Exile the top card of your library. You may play that card. If you do, return Recursive Inspiration to its owner's hand.
"Wait, if we toggle the nozcaster, that'll elevate the framblegrips, which will give us just enough egomass to milivate the powercore!"

It's hybrid after traditional multicolored.

Sudden Inspiration
Sorcery (C)
If was spent to cast this spell, draw two cards then discard a card.
If was spent to cast this spell, discard a card then draw two cards.

Fear of Uncertainty
Enchantment Creature - Nightmare (U)
You may unlock doors at any time you may cast an instant during any player's turn.
Whenever you unlock a door, you may switch this creature's power and toughness until end of turn.
Death is its own form of assurance.
1/3

Shimmering Phoenix
Creature - Bird (R)
Flying, prowess, protection from instants and sorceries you don't control.
4/4

Crix, Test Goblin
Legendary Creature — Goblin (M)
Whenever you cast an instant or sorcery spell, flip a coin. If you win the flip, put a +1/+1 counter on this creature. Otherwise, it deals 1 damage to itself.
, Remove two +1/+1 counters from this creature: This creature's name becomes Crixiv, Enhanced Courier. It becomes a Goblin Scout and its base power and toughness become 3/3. It gains flying and first strike.
, Remove four +1/+1 counters from this creature: If this creature's name is Crixiv, Enhanced Courier, its name becomes Crixivix, Master Engineer, it becomes a Goblin Artificer, its base power and toughness become 7/7, and it gains "Instant and sorcery spells you cast cost less to cast, where X is the amount of damage dealt to this creature this turn."
1/1

Scraphelper
Artifact Creature - Construct (C)
When Scraphelper enters, create a Scrap token (It's a colorless artifact with no abilities).
, Sacrifice an artifact: Put a +1/+1 counter on target artifact creature you control.
It fetches pieces until it becomes pieces.
2/1

Mishra's Infiltrator
Artifact creature - Scout (u)
: Put a menace counter on Mishra's Infiltrator.
: Put a flying counter on Mishra's Infiltrator.
4/4

Serum of Horrors
Artifact (M)
Creatures enter monstrous.
: Add a mana of any color.
His moment of elation was abruptly ended.

Mist-Shrouded Isle
Land (C)
This land enters tapped.
: Add .
"The Wilds are only as unknowable as we let them be." — Will Rowan

Part the Mists
Sorcery — Adventure
Draw two cards, then discard two cards.

Voidspace
Land {U}
: Add
, : Add two mana of any one color. This mana can only be spent to cast World spells.

Weirdwood Manor
Legendary Land (R)
: Add a mana of any color. Target opponent may reveal a card from their hand. If they do, exile Weirdwood Manor with X time counters where X is the mana value of the revealed card. It gains suspend.
: Remove a time counter from Weirdwood Manor.
Some thought of it as a door. Some an enemy. Others as home. And so it was.

The Edge of the Property
Legendary Land (M)
Eerie — Whenever an enchantment you control enters and whenever you fully unlock a Room, put a squeeze counter on The Edge of the Property.
: Add .
, , Remove X squeeze counters from The Edge of the Property and sacrifice it: Put a creature card you own in exile with mana value X or less onto the battlefield. It's a Spirit in addition to its other types and has flying.

Stoneforge Paladin
Creature - Kor Knight (C)
Plainscycling
When you cycle ~, if you control the least amount of lands among all players, you may cast ~ from your graveyard and as an instant until end of turn.
[2/2]

The Monomyth
Enchantment ─ Saga (U)
(As this Saga enters and after your draw step, add a lore counter. Sacrifice after V.)
I: Create a 0/0 legendary white human warrior creature token named "The Hero with a Thousand Faces" with "This creatures base power and toughness are equal to the Lore counters on The Monomyth."
II: The Hero with a Thousand Faces gains lifelink.
III: The Hero with a Thousand Faces gains vigilance.
IV: The Hero with a Thousand Faces gains first strike.
V: Return target saga froom your graveyard to your hand.