This land enters tapped unless you control an Island or a Swamp.
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As this artifact enters, choose artifact, creature, enchantment, instant, or sorcery.
Spells you cast of the chosen type cost less to cast.

Target creature gets +2/+2 until end of turn for each of its colors.

Change the text of target permanent by replacing all instances of one color word with another or one basic land type with another. (For example, you may change "nonblack creature" to "nongreen creature" or "forestwalk" to "islandwalk." This effect lasts indefinitely.)

Indestructible (Effects that say "destroy" don't destroy this artifact.)

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When this creature dies, you may exile it and put three time counters on it. If you do, exile up to one target creature and put three time counters on it. Each card exiled this way that doesn't have suspend gains suspend. (For each card with suspend, its owner removes a time counter from it at the beginning of their upkeep. When the last is removed, they may cast it without paying its mana cost. Those creature spells have haste.)

Put target creature card from a graveyard onto the battlefield under your control. You lose life equal to that card's mana value.

Each player may search their library for up to X creature cards, reveal those cards, put them into their hand, then shuffle.

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This spell costs less to cast for each instant and sorcery card in your graveyard.
You have no maximum hand size.
At the beginning of your upkeep, put a knowledge counter on The Magic Mirror, then draw a card for each knowledge counter on The Magic Mirror.

When you cast this spell, up to two target players each manifest two cards from their hands. For each card manifested this way, you draw a card. (To manifest a card, put it onto the battlefield face down as a 2/2 creature. Turn it face up any time for its mana cost if it's a creature card.)
Other colorless creatures you control get +3/+2.

When Valki enters, each opponent reveals their hand. For each opponent, exile a creature card they revealed this way until Valki leaves the battlefield.
: Choose a creature card exiled with Valki with mana value X. Valki becomes a copy of that card.

Minas Tirith enters tapped unless you control a legendary creature.
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, : Draw a card. Activate only if you attacked with two or more creatures this turn.

Lifelink (Damage dealt by this creature also causes you to gain that much life.)
Whenever a creature you control attacks alone, put a +1/+1 counter on it.

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: Add or . This artifact deals 1 damage to you.

Counter target noncreature spell. Its controller creates two Treasure tokens. (They're artifacts with ", Sacrifice this token: Add one mana of any color.")

Strive — This spell costs more to cast for each target beyond the first.
Choose any number of target creatures you control. For each of them, create a token that's a copy of that creature, except it has haste. Exile those tokens at the beginning of the next end step.

If an opponent cast three or more spells this turn, you may pay rather than pay this spell's mana cost.
Exile any number of target spells.

Cast this spell only during the declare attackers step and only if you've been attacked this step.
Return target attacking creature to its owner's hand.