If it's neither day nor night, it becomes day as this creature enters. Whenever day becomes night or night becomes day, you may tap or untap target nonland permanent.

Skulk (This creature can't be blocked by creatures with greater power.)

Hexproof (This creature can't be the target of spells or abilities your opponents control.)

When this creature enters, you may goad target creature. (Until your next turn, that creature attacks each combat if able and attacks a player other than you if able.)

Whenever a creature attacks you or a planeswalker you control, that creature's controller mills two cards.

{1}{U}, {T}: Create a 2/2 blue Homunculus creature token, then sacrifice a creature.

{T}: Add {C}. {3}, {T}: Venture into the dungeon. Activate only as a sorcery. (Enter the first room or advance to the next room.)

{2}, {T}, Sacrifice this artifact: Search your library for a land card, reveal it, put it into your hand, then shuffle.

{T}: Add {C}. {T}: Roll the planar die. Activate only as a sorcery.

If you would roll one or more planar dice, instead roll that many planar dice plus one and ignore one. {T}: Add {C}{C}.

When this artifact enters, you gain 3 life. {T}: Until end of turn, target land you control becomes the basic land type of your choice in addition to its other types.

{1}, Sacrifice this artifact: Search your library for a land card that doesn't have the same art as a permanent you control, reveal it, put it into your hand, then shuffle.

Planar Atlas enters tapped. When Planar Atlas enters, you may look at the top four cards of your library. If you do, reveal up to one land card from among them, then put that card on top of your library and the rest on the bottom in a random order. {T}: Add {C}.

This artifact enters tapped. {T}, Sacrifice this artifact: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.

When this artifact enters, you take the initiative. {T}: Add {C}. If you have the initiative, add {C}{C} instead. {3}, {T}: Exile cards from the top of your library until you exile a nonland card. You may cast that card without paying its mana cost. Activate only if you've completed a dungeon.

This artifact enters tapped. {T}: Add one mana of any color that a basic land you control could produce.

This enchantment enters under the control of an opponent of your choice. At the beginning of your upkeep, choose one that hasn't been chosen — • Your life total becomes 4. • Discard your hand. • Each opponent creates five 2/2 black Zombie creature tokens.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) Create X 1/1 white Soldier creature tokens with lifelink.

Counter target spell. If you control a blue creature, draw a card, then discard a card.

Put target creature into its owner's library just beneath the top X cards of that library, where X is the number of doors you can see from your seat.

Put target nonland permanent on top of its owner's library.