For each opponent, gain control of target permanent that player controls.

Delve (Each card you exile from your graveyard while casting this spell pays for .)

Swampcycling (, Discard this card: Search your library for a Swamp card, reveal it, put it into your hand, then shuffle.)
Backup 2 (When this creature enters, put two +1/+1 counters on target creature. If that's another creature, it gains the following ability until end of turn.)
Menace

Cycling (, Discard this card: Draw a card.)
When you cycle this card, you may search your library for a basic land card, reveal that card, put it into your hand, then shuffle. (Do this before you draw.)

Flying, haste
Whenever Klauth attacks, add X mana in any combination of colors, where X is the total power of attacking creatures. Spend this mana only to cast spells. Until end of turn, you don't lose this mana as steps and phases end.

Each player's life total becomes the lowest life total among all players.

Flying
When this creature enters, search your library for a card, put it into your hand, then shuffle.

You may reveal this card from your opening hand. If you do, when each opponent casts their first spell of the game, counter that spell unless that player pays .
Flying
Whenever an opponent casts a spell, counter it unless that player pays .

( can be paid with either or 2 life.)
Lifelink
For each in a cost, you may pay 2 life rather than pay that mana.
Whenever you cast a black spell, put a +1/+1 counter on K'rrik.

Flame Wave deals 4 damage to target player or planeswalker and each creature that player or that planeswalker's controller controls.

Flying
When this creature enters, destroy target permanent.

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.

: Exile target permanent.
If Legacy Weapon would be put into a graveyard from anywhere, reveal Legacy Weapon and shuffle it into its owner's library instead.

Flying
Cumulative upkeep—Gain control of a land you don't control. (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)
This creature gets +1/+1 for each land you control but don't own.
When this creature leaves the battlefield, each player gains control of each land they own that you control.

Cowards can't block Warriors.
: Target creature becomes a Coward until end of turn.
: Target creature becomes a Warrior until end of turn.

+4: Target player exiles a card from their hand.
−3: Exile target permanent.
−14: Restart the game, leaving in exile all non-Aura permanent cards exiled with Karn. Then put those cards onto the battlefield under your control.

Flying
When this creature enters, choose an opponent. If that player has more cards in hand than you, draw cards equal to the difference.

Flying
When this creature enters, you may discard your hand and draw cards equal to the damage dealt to target opponent this turn.

Vigilance
Other creatures you control get +2/+2.
Creatures your opponents control get -2/-2.

Take an extra turn after this one.
If Nexus of Fate would be put into a graveyard from anywhere, reveal Nexus of Fate and shuffle it into its owner's library instead.

You may pay and tap four untapped creatures you control with flying rather than pay this spell's mana cost.
Flying, lifelink
Other creatures you control with flying have indestructible. (Damage and effects that say "destroy" don't destroy them.)

Imprint — When this creature enters, you may exile target nontoken creature.
This creature gets +X/+Y, where X is the exiled creature card's power and Y is its toughness.

Flying
When Bladewing enters, you may return target Dragon permanent card from your graveyard to the battlefield.
: Dragon creatures get +1/+1 until end of turn.

Trample
When this creature dies, create a 6/6 black Wurm creature token with trample.

Enchant permanent
You control enchanted permanent.
Cycling (, Discard this card: Draw a card.)

If this spell was cast from your hand and you've cast another spell named Approach of the Second Sun this game, you win the game. Otherwise, put Approach of the Second Sun into its owner's library seventh from the top and you gain 7 life.

Flying, trample
When Dragonlord Atarka enters, it deals 5 damage divided as you choose among any number of target creatures and/or planeswalkers your opponents control.

Flash
Flying
When this creature enters, if you cast it from your hand, exile all attacking creatures.

Trample
While you're searching your library, you may cast this card from your library.

Other Dinosaurs you control get +1/+1.
: Create a 3/3 green Dinosaur creature token with trample. (It can deal excess combat damage to the player or planeswalker it's attacking.)

At the beginning of your upkeep, this enchantment deals 5 damage to any target.
At the beginning of each end step, your life total becomes 5.
Creatures without flying can't attack you.

Sunburst (This creature enters with a +1/+1 counter on it for each color of mana spent to cast it.)
Remove a +1/+1 counter from this creature: This creature gains your choice of flying, first strike, or haste until end of turn.

For each land you control, create a Treasure token. (It's an artifact with ", Sacrifice this token: Add one mana of any color.")

Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for .)
This creature can't be blocked by artifact creatures.

Vigilance, trample