Look at the top X cards of your library, where X is the amount of mana spent to cast this spell. Put two of them into your hand and the rest on the bottom of your library in a random order.
Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

: Add .
: This land becomes a 3/3 creature with vigilance and all creature types. It's still a land.

As an additional cost to cast this spell, sacrifice a creature.
Draw two cards.

: Draw a card, then discard a card.
Whenever a permanent that shares an artist with another permanent you control enters, untap this creature.

, : The next time you would draw a card this turn, instead look at the top X cards of your library, put all but one of them on the bottom of your library in a random order, then draw a card. X can't be 0.

Haste
Nontoken creatures you control have ": Create a token that's a copy of target token you control that entered this turn."

This creature gets +1/+0 for each artifact you control.
Sacrifice a creature: Regenerate this creature.

Nonland permanents you control are artifacts in addition to their other types. The same is true for permanent spells you control and nonland permanent cards you own that aren't on the battlefield.

When this enchantment enters, it deals X damage to any target.
Creatures you control have trample.

Whenever Emmara becomes tapped, create a 1/1 white Soldier creature token with lifelink.

This land doesn't untap during your untap step if it has a depletion counter on it.
At the beginning of your upkeep, remove a depletion counter from this land.
: Add or . Put a depletion counter on this land.

This land enters tapped.
: Add .
, Sacrifice this land: Add one mana of any color.

Teamwork 5 (As an additional cost to cast this spell, you may tap any number of creatures you control with total power 5 or more.)
Reveal the top eight cards of your library. You may put a creature card from among them onto the battlefield. If this spell was cast using teamwork, put any number of creature cards from among them onto the battlefield instead. Put the rest into your graveyard.

Imprint — When this artifact enters, each player exiles the top three cards of their library.
Whenever a player casts a spell from their hand, that player exiles it. If the player does, they may cast a spell from among other cards exiled with this artifact without paying its mana cost.

(: Add .)

, Sacrifice this creature: You gain 3 life.

When this creature enters, you gain 2 life.

Indestructible
: Add .

At the beginning of your upkeep, put a devotion counter on this creature. Then if a creature named Eight-and-a-Half-Tails is on the battlefield, you gain 1 life for each devotion counter on this creature.
, Remove a devotion counter from this creature: You gain 1 life.

Flying, trample
At the beginning of your upkeep, exile the top card of your library and balance it on your body.
When a balanced card falls or touches another balanced card, sacrifice this creature.