Winterhoard Stasher
Creature - Squirrel Druid (U)
Offspring - Forage
This creature enters with X +1/+1 counters on it. If this creature is nontoken, X is equal to the number of nontoken permanents you control that were put into the graveyard this turn. If this creature is a token, X is equal to the number of tokens you control that were put into the graveyard this turn.
"All things in their time."
0/0

Yoda, Jedi Master
Legendary Creature ─ Jedi Knight (R)
Indestructible
When Yoda enters, draw a card for each card type on the battlefield.
Spirit Form ─ Tap an untapped Jedi you control, exile Yoda from your graveyard: Draw a card.
3/3
"For my ally is the Force, and a powerful ally it is. Life creates it, makes it grow. Its energy surrounds us and binds us. Luminous beings are we, not this crude matter."

You don't need the rider on the ability; the game can recognize the ability will only work if Yoda is in the graveyard. That said, is it meant to be repeatedly activated at once since Yoda isn't exiled until the ability starts resolving?

One with the Force
Legendary Enchantment (M)
Whenever you draw a card, if the number of cards in your hand is equal to the number of creatures you control and the number of lands you control and the number of cards in your graveyard, you win the game.
, Tap an untapped Jedi you control, Exile a Jedi card from your graveyard: Draw a card.

Good to know. I was curious about the rider. I did mean for it to only work once.

Spelltwist
Instant (C)
Choose one or both:

• Copy target instant or sorcery spell. You may choose new targets for the copy.
• Counter target instant or sorcery spell.

Twist Words
Instant (U)
Exile target spell. As long as that spell remains exiled, that spell's owner may cast it and the exiled card has "At the beginning of this card's owner's upkeep, that player discards a card."
The Silverquill's mastery of communication includes mastery of miscommunication.

When Words Fail
Sorcery (R)
Destroy all creatures and planeswalkers.
Players can't cast spells until the beginning of your next upkeep.
After such devastation, only silence is appropriate.

Planegorger
Creature - Nephilim (M)
Flying, menace
Planegorger's power and toughness are each equal to the number of lands owned by your opponents in exile and their graveyards.
If a land would enter the battlefield under an opponent's control except for the first time each turn, exile it instead.
It is and has been.
*/*

Dominate your Destiny
Sorcery (C)
Choose one or both —
• Exile target creature.
• Exile target card from a graveyard.
Once you start down the dark path...

Take a Pause
Instant (U)
Return target spell to its owner's hand. That spell's controller creates a Food token and a Clue token.

Fledgling Progenitus
Legendary Creature ─ Hydra Avatar (R)
Fledgling Progenitus enters with X +1/+1 counters.
Whenever you cast a spell with in its cost, put that many +1/+1 counters on Fledgling Progenitus.
If Fledgling Progenitus has ten or more +1/+1 counters on it, it has protection from everything.
0/0

The Mysterious Patron
Legendary Planeswalker (M)
Whenever you put one or more cards from your library in your graveyard, exile those cards.
At the beginning of each end step, you may put a card exiled with this planeswalker this turn in your hand. Then, put all other cards in your graveyard. If five or more cards are put in your graveyard this way, exile The Mysterious Patron and cast it transformed without paying its mana cost.
: Surveil 2.
: Gain control of target creature with mana value X or less.


// Transform //

Jace, Unmasked Mastermind
Legendary Planeswalker — Jace
: Exile the top card on your library. It becomes plotted.
: For each opponent with more cards in their library than you, that player mills the difference.


// Split Card //

Ashiok, Faceless Benefactor
Legendary Planeswalker — Ashiok
: Target opponent exiles the top four cards on their library.
: Cast target nonland card an opponent owns in exile without paying its mana cost.

Personal Diary
Artifact (C)
When Personal Diary enters, undermine. (To undermine, create a secret token. It's an artifact with ", sacrifice this: Target player mills three cards.)
: Add .

Specimen Collector
Artifact (U)
, : Draw a card, then discard a card unless you reveal two cards from your hand with the same name.
The efficiency of early gathering machines was often hampered by a habit that came to be known as the "Noah principle."

Time Patcher
Artifact (R)
Time Patcher enters tapped.
, : Destroy all historic permanents.
If you wipe out butterflies, no one will have anything to step on.

Uniformer
Artifact
Legendary creatures you control get +1/+1.
: Two target creatures become paired and are Legendary as long as they are paired.
"Okay, but I thought we agreed that I was going to be Batman this time!"

Rabbit Warren
Land (C)
Rabbit Warren enters tapped.
: Add or .
, , Sacrifice Rabbit Warren: Rabbits you control gain vigilance and hexproof until your next turn. Activate this ability only as a sorcery.

I honestly thought this was the alphabet game when I posted my last card

Mox Quarry
Land (U)
~ enters the battlefield tapped.
: Add .
, , Sacrifice ~: Create a colorless artifact token named "Mox" with ": Add one mana of any color."

I kinda figured.

Mousefolk Armory
Land (R)
: Add or .
: This land becomes a 2/1 red and white Mouse creature with haste until end of turn. It's still a land.
Valiant — Whenever this land becomes the target of a spell or ability you control, target creature you control gains first strike until end of turn. This ability triggers once per turn.

Mox Reprocessor
Legendary Artifact (M)
, Remove a counter from a permanent you control: Add one of that permanent's colors.
The essence of essence itself.