Search your library for a basic land card, reveal it, put it into your hand, then shuffle. You gain 2 life.

Flash
Enchant creature
Enchanted creature gets +2/+1 and has tantrum. (It's like trample but for blocking.)

Look at the top five cards of your library. As many times as you choose, you may pay 1 life, put those cards on the bottom of your library in any order, then look at the top five cards of your library. Then shuffle and put the last cards you looked at this way on top in any order.

Activated abilities of artifacts can't be activated.

Legacy (During deckbuilding, circle any number of the following. You can spend 1 point for free. For every 2 points spent beyond that, increase this card's mana cost by .)
1 point each → Flash; deathtouch; reach; vigilance; or ward
2 points → : Add one mana of any color.
3 points each → +1/+1; or +0/+2
4 points → When this creature enters the battlefield, draw a card.

Equipped creature has haste and shroud. (It can't be the target of spells or abilities.)
Equip

At the beginning of your upkeep, destroy all artifacts and enchantments. They can't be regenerated.

When this creature enters, look at the top X cards of your library, where X is your devotion to blue. Put up to one of them on top of your library and the rest on the bottom of your library in a random order. If X is greater than or equal to the number of cards in your library, you win the game. (Each in the mana costs of permanents you control counts toward your devotion to blue.)

You may return an Island you control to its owner's hand rather than pay this spell's mana cost.
Counter target spell unless its controller pays .

Choose one or both —
• Put a base power 4 counter on target creature.
• Put a base toughness 4 counter on target creature.

This spell can't be countered.
Destroy target nonland permanent with mana value 3 or less.

Return target artifact, enchantment, or land to its owner's hand.

Equipped creature can't attack, block, or transform, and its activated abilities can't be activated.
Shackle (: Attach to target creature you don't control. Shackle only as a sorcery.)

This creature gets +1/+0 for each other Rat you control.
A deck can have any number of cards named Rat Colony.

Sinecure (This creature can occupy a space two spaces higher on the Monk Track than its power.)
Once on each of your odd-numbered (beige) production phases, you may spend two additional sheep when constructing a building. If you do, you may activate the lesser production ability of any building of prestige 5 or lower you control. Exceptions: Apiary, Cobbler (but not Shoemaker), Wainwright.

: Surveil 1.
: Target permanent card in a graveyard becomes a 0/0 black Germ creature in addition to its other colors and types until end of turn. (This effect ends if it leaves the graveyard.)

Equipped creature gets +1/+2.
Equip
Whenever a 1/1 creature you control enters, you may return this card from your graveyard to the battlefield, then attach it to that creature.

Creatures entering don't cause abilities to trigger.

Enchant creature you control
When Penumbra Umbra is put into a graveyard from the battlefield, create a token that's a copy of enchanted creature, except the token is black.
Umbra armor (If enchanted creature would be destroyed, instead remove all damage from it and destroy this Aura.)

All creatures lose flying until end of turn.
Sacrifice a snow land: Return this card from your graveyard to your hand.

: Add one mana of any color in your commander's color identity.

Flash
Flying
When this creature enters, draw a card.
This creature has deathtouch as long as you control at least three other snow permanents.

Whenever an opponent casts a spell, you may reveal the top card of your library. If you do, counter that spell if it has the same mana value as the revealed card.

You may cast an instant or sorcery spell from your sideboard. If you cast a modal spell this way, you may choose an additional mode. (A modal spell lets you choose one or more modes from a bulleted list.)

When a player casts a spell, sacrifice this enchantment. If you do, each of that player's opponents draws three cards.

Counter target spell.

Search your library for a blue instant card, reveal that card, put it into your hand, then shuffle.

Multicleave (You may pay an additional any number of times as you cast this spell. For each time you do, choose a paired set of square brackets and remove the words in between.)
Destroy target [nonblack] creature [with mana value 3 or less] [an opponent controls]. You [and its controller each] draw a card [and lose 2 life]. Create a [tapped] 1/1 white Spirit creature token with flying.

When this artifact enters, draw a card.
Each land with an activated ability that isn't a mana ability doesn't untap during its controller's untap step.

When Sigardian Evangel enters the battlefield, conjure a card named Sigardian Evangel into your hand. Discard that card at the beginning of the next end step.
When Sigardian Evangel enters the battlefield, tap target permanent you don't control.

Target player mills three cards.
Storm (When you cast this spell, copy it for each spell cast before it this turn. You may choose new targets for the copies.)

Vigilance
As long as you are way behind, Knight of Lost Causes gets +3/+3 and has indestructible. (You are way behind if, at any point during this turn, an opponent had 10 or more life than you, controlled at least three more creatures than you, or had at least three more cards in hand than you.)

Each player who has cast a nonartifact spell this turn can't cast additional nonartifact spells.

Flying
Any time you could mulligan and No-Regrets Egret is in your hand, you may reveal No-Regrets Egret. If you do, look at the top two cards of your library. (Put those cards back in the same order. You can still mulligan.)

, Sacrifice a nontoken artifact: Create a 1/1 blue Thopter artifact creature token with flying. You gain 1 life.