Choose one at random —
• You get an emblem with "At the beginning of your upkeep, pay . If you don't, you lose the game."
• Each player discards their hand.
• Planeswalk to Pools of Becoming. (Once there, you can roll the planar die only if you're playing Planechase.)
• For each opponent, exile cards from the top of their library until you exile a nonland card. You may cast those cards without paying their mana costs.
• Destroy all creatures and non-Bolas planeswalkers.
• You get an emblem with "You can cast nonland cards from your sideboard."

Spark (Activate spark abilities by spending or giving yourself spark counters. Activate only one spark ability per turn, and only as a sorcery.)
+1: Blood Poet gains lifelink until end of turn.
−3: Target opponent discards a card. You gain life equal to its converted mana cost.

Enchant two creatures
Enchanted creatures each get +1/+1 and have hexproof.
When one of the enchanted creatures dies, destroy the other.

Flying
When Witty Demon enters, if your starting library had at least 13 cards over the minimum, search your library for a card and put that card into your hand, then shuffle your library. Otherwise, Witty Demon deals 4 damage to you.

Buyback (You may pay an additional as you cast this spell. If you do, put this card into your hand as it resolves.)
Flash
Flying
When you cast this spell, draw a card.

All Hounds are Dogs. (We'll errata this to be true.)
First strike, lifelink
Underdog — If you've lost a game this match, Ruff, Underdog Champ and other Dogs you control get +1/+1.

Flying
Whenever Xyru Specter deals damage to an opponent, that player discards a card unless they challenge you. If challenged, and you show them two black cards in your hand, they must discard two cards.

Upgrade (This creature enters covering another artifact you control. If it can't, exile it. Ignore the artifact it's covering. Anywhere this card goes, cards underneath it also go. It has haste.)

0: Exile Kaya, Ghost Haunter haunting target creature for as long as that creature remains on the battlefield.
−1: You get an emblem with, "At the beginning of your upkeep, this emblem deals 3 damage to the owner of target haunted creature."
−2: You get an emblem with, "At the beginning of your upkeep, gain control of target haunted creature for as long as it remains haunted."

Flying
Players can't cast instant spells unless a spell or ability is on the stack.

You are a Flagbearer.
While choosing targets as part of casting a spell or activating an ability, your opponents must choose at least one Flagbearer if able.

Haste
The stack is now first in, first out instead of last in, first out. (The first spell or ability on the stack is the first one to resolve.)

All targeted spells and abilities cost less and have their targets chosen randomly.

Flying, deathtouch
When Zyym, Mesmeric Lord enters the battlefield, target opponent chooses an order for the cards in their hand, then reveals them one by one until you say stop. That player then discards the most recently revealed card.

Patient Turtle enters with two +1/+1 counters on it if you didn't go first this game.

Enchant creature or enchantment
Enchanted permanent is an enchantment and loses all other card types. (It still has its abilities, but it's no longer a creature.)

Each player discards a card, then loses 1 life, then sacrifices an artifact, a creature, an enchantment, a land, a planeswalker, and a tribal permanent, then exiles a card from their graveyard, then puts the top card of their library into their graveyard, then removes a counter from a permanent they control, then gets a poison counter.

You may begin the game with Buried Ogre in your graveyard. If you do, you lose 1 life.

Scrycast (If you see this card while scrying, you may reveal it and cast it by paying .)
Flying

When Celestine Cave Witch enters, create two 1/1 black Insect creature tokens.
Whenever Celestine Cave Witch attacks, you may sacrifice an Insect. When you do, curse defending player. (Create a black Aura Curse enchantment token that's attached to that player. It has enchant player and "At the beginning of your upkeep, you lose 1 life.")

Put a manabond counter on all creatures. (They lose all other abilities and become lands with ": Add one mana of this card's color.")

Interplanar (This creature enters onto the interplanar battlefield. Players can't control creatures on the interplanar battlefield.)
Vigilance, haste
Whenever a player attacks with a creature with power 4 or greater, Interplanar Brushwagg also attacks the player or planeswalker that creature is attacking.

At the beginning of your upkeep, create a Forest land token.

Protection from modified creatures (Modified creatures have a power, toughness, or ability different than their printed versions.)
At the beginning of each player's end step, you may put a +1/+1 counter on target creature that player controls.

Everlasting Lich can't block.
Everlasting Lich can't die. (This creature has indestructible, can't be sacrificed, and doesn't go to the graveyard for having 0 toughness.)

When Form of the Mulldrifter enters, draw two cards.
You may cast creature cards from your hand as though they were the card Mulldrifter. (You can still evoke this way. They're Mulldrifters.)

All Slivers have banding. (Any creatures with banding, and up to one without, can attack in a band. Bands are blocked as a group. If any creatures with banding you control are blocking or being blocked by a creature, you divide that creature's combat damage, not its controller, among any of the creatures it's being blocked by or is blocking.)

Flying
Chimney Goyf's power is equal to the number of card types among cards in all graveyards and its toughness is equal to that number plus 1.
When Chimney Goyf dies, target opponent puts a card from their hand on top of their library.

Flying, vigilance

When Lightning Colt enters, it deals 3 damage to any target.

When Squidnapper enters, gain control of target creature an opponent controls until Squidnapper leaves the battlefield or that player pays the ransom.
Ransom — and 2 life

Choose any number of modes that total exactly 4. You may choose the same mode more than once.
[1] Put a +1/+1 counter on target creature.
[2] Create a 1/1 black Snake creature token with deathtouch.
[4] All creatures get -2/-2 until end of turn.

When Bone Rattler is put into your graveyard from anywhere, exile it. When you do, create four Reassembling Skeleton token cards and put them into your graveyard.

Landship — At the beginning of your upkeep, you may look at the top card of your library. If it's a land, you may reveal it. If you do, create a 1/1 green Elf Warrior creature token.
Kinfall — Whenever a creature enters the battlefield under your control, if it shares a creature type with Plane-Merge Elf, creatures you control get +1/+1 until end of turn.

Megalegendary (Your deck can have only one copy of this card.)
Vigilance, trample
Vazal, the Compleat has the activated abilities of all other permanents on the battlefield.

Choose one or more —
• Destroy all small creatures.
• Destroy all medium creatures.
• Destroy all large creatures.
(A small creature has total power and toughness 4 or less, medium is 5—8, and large is 9 or more.)