This spell can't be countered.
Draw cards equal to the greatest toughness among creatures you control, then put any number of creature cards from your hand onto the battlefield.

Search your library for a card, then shuffle and put that card on top. You lose 2 life.

Flying
Vigilance (Attacking doesn't cause this creature to tap.)

, : Create a 1/1 colorless Insect artifact creature token with flying named Wasp. (It can't be blocked except by creatures with flying or reach.)

, , Exile two cards from your graveyard: This creature deals 2 damage to any target.

Whenever an opponent casts a spell, you may draw a card unless that player pays .

Ward—Pay 2 life.
Other creatures you control enter with an additional +1/+1 counter on them for each opponent who lost life this turn.
Whenever you cast a Lizard spell, Gev deals 1 damage to target opponent.

Deathtouch
When this creature enters, the Ring tempts you.
Whenever the Ring tempts you, put a +1/+1 counter on each Wraith you control.
A deck can have up to nine cards named Nazgûl.

Equipped creature gets +2/+2 and has protection from instants and from sorceries.
Whenever equipped creature deals combat damage to a player, create a Treasure token. When you next cast an instant or sorcery spell this turn, copy that spell. You may choose new targets for the copy.
Equip

Flying
: Search your library for a Dragon permanent card and put it into your graveyard. If you do, Scion of the Ur-Dragon becomes a copy of that card until end of turn. Then shuffle.

This spell costs less to cast, where X is the greatest power among creatures you control.
: Add . You gain 2 life.
Whenever a nontoken creature you control enters, put a +1/+1 counter on it and draw a card.

+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.

(: Add or .)
As this land enters, you may pay 2 life. If you don't, it enters tapped.

Flying
When you control no artifacts, sacrifice this creature.

At the beginning of your upkeep, flip a coin. If you lose the flip, this artifact deals 3 damage to you.
: Add .

Flash (You may cast this spell any time you could cast an instant.)
Flying
You may cast spells as though they had flash.

Flying

Counter target spell.
At the beginning of your next upkeep, pay . If you don't, you lose the game.

+1: Return up to one target land card from your graveyard to your hand.
−1: Wrenn and Six deals 1 damage to any target.
−7: You get an emblem with "Instant and sorcery cards in your graveyard have retrace." (You may cast instant and sorcery cards from your graveyard by discarding a land card in addition to paying their other costs.)

: Add one mana of any color that a land an opponent controls could produce.