As this artifact enters, choose an opponent. At the beginning of the chosen player's upkeep, this artifact deals X damage to that player, where X is the number of cards in their hand minus 4.

Draw three cards, then put two cards from your hand on top of your library in any order.

You may return two Islands you control to their owner's hand rather than pay this spell's mana cost. Draw two cards.

{2}: This creature gains flying until end of turn. {2}, Sacrifice this creature: Draw a card.

{1}: Look at the top three cards of your library, then put them back in any order. {T}: Draw a card, then put this artifact on top of its owner's library.

When a player casts a spell, sacrifice this enchantment. If you do, each of that player's opponents draws three cards.

When this artifact enters, draw a card. Each land with an activated ability that isn't a mana ability doesn't untap during its controller's untap step.

({T}: Add {U}.)

{T}: Add {C}. {1}, {T}: Tap target land.

Fortified land has indestructible. Whenever fortified land becomes tapped, target creature gets +1/+1 until end of turn. Fortify {3} ({3}: Attach to target land you control. Fortify only as a sorcery. This card enters unattached and stays on the battlefield if the land leaves.)

Creatures with power greater than the number of cards in your hand can't attack.

At the beginning of your upkeep, you may put a charge counter on this artifact. {T}: You may put a creature card with mana value equal to the number of charge counters on this artifact from your hand onto the battlefield.

{T}: Add one mana of any color in your commander's color identity.

This artifact doesn't untap during your untap step. {T}: Add {C}{C}{C}. {3}: Untap this artifact.

Karn's power and toughness are each equal to the greatest mana value among artifacts you control. At the beginning of your upkeep, add {C} for each artifact you control. This mana can't be spent to cast nonartifact spells. Until end of turn, you don't lose this mana as steps and phases end.

Sacrifice an artifact: Add {C}{C}.

{T}, Sacrifice this artifact: Add one mana of any color.

Cast this spell only during an opponent's turn after their upkeep step. Untap all lands you control.

{T}: Add {C}. Any time you could mulligan and this card is in your hand, you may exile all the cards from your hand, then draw that many cards. (You can do this in addition to taking mulligans.)

Each player may put an artifact, creature, enchantment, or land card from their hand onto the battlefield.

Return target nonland permanent to its owner's hand. Then that permanent's controller may sacrifice a land of their choice. If the player does, they may copy this spell and may choose a new target for that copy.

Whenever an opponent casts a spell, you may reveal the top card of your library. If you do, counter that spell if it has the same mana value as the revealed card.

Counter target spell.

Sunburst (This enters with a charge counter on it for each color of mana spent to cast it.) {2}, Sacrifice this artifact: Destroy each nonland permanent with mana value equal to the number of charge counters on this artifact.

You may discard an Island card and another card rather than pay this spell's mana cost. Counter target spell.

{3}, {T}: Reveal cards from the top of your library until you reveal a land card. This artifact deals damage equal to the number of nonland cards revealed this way to any target. If the revealed land card was a Mountain, this artifact deals double that damage instead. Put the revealed cards on the bottom of your library in any order.

Tap all lands target player controls and that player loses all unspent mana.

{2}{U}, {T}: Put target creature on the bottom of its owner's library. That creature's controller reveals cards from the top of their library until they reveal a creature card. The player puts that card onto the battlefield and the rest on the bottom of their library in any order. Activate only as a sorcery.

{T}: Target player exiles a card from their graveyard. {1}, Exile this artifact: Exile all graveyards. Draw a card.

Put target creature on top of its owner's library, then fateseal 2. (To fateseal 2, look at the top two cards of an opponent's library, then put any number of them on the bottom of that player's library and the rest on top in any order.)

Counter target activated or triggered ability. (Mana abilities can't be targeted.)

{T}, Sacrifice this artifact: Exile target player's graveyard.

Nonbasic lands don't untap during their controllers' untap steps.

Creature cards in graveyards and libraries can't enter the battlefield. Players can't cast spells from graveyards or libraries.

Creatures with power 3 or greater don't untap during their controllers' untap steps.

At the beginning of your upkeep, you may put a soot counter on this artifact. At the beginning of each player's upkeep, that player sacrifices a permanent of their choice for each soot counter on this artifact.

As long as this artifact is untapped, players can't untap more than two permanents during their untap steps.