At the beginning of your end step, draw a card if your library has more cards in it than target opponent's library. Otherwise, each opponent mills five cards.

Haste
Whenever Kardum, Patron of Flames attacks, put a flame counter on it, then seek a card with mana value equal to the number of flame counters on it and exile that card face down.
When Kardum dies, put all cards you own exiled with it into your hand. At the beginning of the end step of your next turn, discard those cards.

Devour Intellect — When this creature enters, each opponent exiles a card from their hand until this creature leaves the battlefield.
Body Thief — You may play lands and cast spells from among cards exiled with this creature. If you cast a spell this way, you may spend mana as though it were mana of any color to cast it.

Oyaminartok, Polar Werebear has hexproof if it hasn't dealt damage yet.
Whenever Oyaminartok deals combat damage to a player, create a Food token.
, Sacrifice a Food: Draft a card from Oyaminartok's spellbook. When you do, add . Spend this mana only to cast blue creature spells.

: Draw a card, then exile a card from your hand and put a number of time counters on it equal to its mana value. It gains "When the last time counter is removed from this card, if it's exiled, you may cast it without paying its mana cost. If you cast a creature spell this way, it gains haste until end of turn." Then remove a time counter from each other card you own in exile.

Avoidance — Whenever you cast a noncreature spell, exile up to one target nonland permanent you control, then return that card to the battlefield under its owner's control.

Each creature you control with a mana ability gets +2/+2.
Whenever a creature you control with a mana ability attacks, untap it.
Whenever you cast a spell, if at least seven mana was spent to cast it, untap target creature. It gets +7/+7 and gains trample until end of turn.

Double strike
Specialize
When you cast this spell, it gains "When this creature becomes the target of a spell or ability an opponent controls, you may exile this creature, then return it to the battlefield under its owner's control."

Whenever a creature enters, if it was cast, exile it, then return all other permanent cards exiled with this artifact to the battlefield under their owners' control.

Exile target spell, then roll a d20 and add that spell's mana value.
1—14 | You may cast the exiled card for as long as it remains exiled, and you may spend mana as though it were mana of any color to cast that spell.
15+ | You may cast the exiled card without paying its mana cost for as long as it remains exiled.

Flying
Whenever a Dragon you control is dealt damage, it deals that much damage to any target that isn't a Dragon.

Flying
Other Demons, Devils, Imps, and Tieflings you control get +1/+1 and have lifelink.
At the beginning of each end step, if a creature card was put into your graveyard from anywhere this turn, create a 1/1 red Devil creature token with "When this token dies, it deals 1 damage to any target."

Flash (You may cast this spell any time you could cast an instant.)
When this creature enters, counter target artifact or creature spell.

As this enchantment enters, choose a creature type.
Whenever a creature you control of the chosen type enters or attacks, draw a card.

Double strike
When this creature enters or specializes, return up to two target creature cards with total mana value 3 or less from your graveyard to the battlefield.

Double strike
When this creature enters or specializes, conjure a duplicate of a random creature card from an opponent's library into your hand. It perpetually gains "You may spend mana as though it were mana of any color to cast this spell."

Double strike
When this creature enters or specializes, other creatures you control and creature cards in your hand perpetually get +1/+1.

Double strike
When this creature enters or specializes, create two 1/1 white Soldier creature tokens.

Each player chooses a party from among creatures they control, then sacrifices the rest. (To choose a party, choose up to one each of Cleric, Rogue, Warrior, and Wizard.)

Search your library for up to X basic land cards, where X is the greatest power among creatures you control. Put those cards onto the battlefield tapped, then shuffle.

Double strike
When this creature enters or specializes, seek a nonland permanent card with mana value 3 or less.

When The Hourglass Coven enters the battlefield, draft a card from The Hourglass Coven's spellbook twice, then put those cards onto the battlefield.
Other Warlocks you control get +1/+1.

Flying
Whenever you cast a spell from exile, copy it. You may choose new targets for the copy. If it's a permanent spell, the copy gains haste and "At the beginning of the end step, sacrifice this permanent." (A copy of a permanent spell becomes a token.)

Flying, ward
Calim's Breath — , Discard Calim: Tap up to one target nonland permanent. Draw a card. Then you may exile two other cards named Calim, Djinn Emperor from your graveyard. When you do, return Calim from your graveyard to the battlefield tapped.
When you discard Calim, conjure a card named Calim, Djinn Emperor into your library seventh from the top.

Choose one or more —
• Create two 2/2 white Knight creature tokens.
• Seek a nonland permanent card with mana value 3 or less.
• Destroy target artifact.
• Destroy target enchantment.
• Target player gains 3 life.

Flying, ward
Whenever another nontoken Dragon you control enters, create a token that's a copy of it, except the token isn't legendary.

Deathtouch, lifelink
At the beginning of your end step, choose one —
• Feed — Target opponent loses life equal to the amount of life they lost this turn.
• Friends — You gain life equal to the amount of life you gained this turn.

Whenever you cast a spell, you may put it on the bottom of its owner's library. If you do, reveal cards from the top of your library until you reveal a nonland card. You may cast that card without paying its mana cost. Then put all revealed cards not cast this way on the bottom of your library in a random order. This ability triggers only once each turn.

When Signature Spells enters the battlefield, seek two instant and/or sorcery cards with mana value 3, then exile them.
At the beginning of your upkeep, you may copy a card exiled with Signature Spells. You may cast the copy without paying its mana cost.

Target player draws X cards and loses X life, where X is the number of cards in their graveyard.

When this creature enters, each opponent creates a 1/1 red Pirate creature token with "This token can't block" and "Creatures you control attack each combat if able."
Spells your opponents cast that target this creature cost more to cast.

This spell can't be countered.
You have no maximum hand size.
Whenever an opponent casts a noncreature spell, draw a card.
Discard three cards: Exile Nezahal. Return it to the battlefield tapped under its owner's control at the beginning of the next end step.

This spell costs less to cast, where X is the total mana value of Dragons you control.
Flying, trample
, Sacrifice a land: Return this card from your graveyard to your hand.

This spell costs less to cast, where X is the total mana value of Dragons you control not named Earthquake Dragon.
Flying, trample
, Sacrifice a land: Return A-Earthquake Dragon from your graveyard to your hand.