Lands you control have ": Add one mana of any color."
: Add one mana of any color.

This artifact doesn't untap during your untap step.
At the beginning of your upkeep, you may pay . If you do, untap this artifact.
At the beginning of your draw step, if this artifact is tapped, it deals 1 damage to you.
: Add .

: Add .
: This land becomes a 2/2 Assembly-Worker artifact creature until end of turn. It's still a land.
: Target Assembly-Worker creature gets +1/+1 until end of turn.

As an additional cost to cast this spell, sacrifice a land.
Search your library for a land card, put that card onto the battlefield, then shuffle.

Create X 1/1 green Forest Dryad land creature tokens. (They're affected by summoning sickness.)

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

When you cast this spell, reveal the top fourteen cards of your library. Put all Doctor cards revealed this way into your graveyard and the rest on the bottom of your library in a random order.
You may have The Fourteenth Doctor enter as a copy of a Doctor card in your graveyard that was put there from your library this turn. If you do, it gains haste until end of turn.

Equipped creature has ", : This creature gets +2/+2 until end of turn." ( is the untap symbol.)
Equip

At the beginning of your upkeep, destroy another nonland permanent chosen at random, then put a number of +1/+1 counters on Yule Ooze equal to that permanent's converted mana cost.
, Eat some food: Regenerate Yule Ooze.

Flying
As Iona enters, choose a color.
Your opponents can't cast spells of the chosen color.

Search your library for a card, put that card into your hand, then shuffle.

When Omnath enters, draw a card.
Landfall — Whenever a land you control enters, you gain 4 life if this is the first time this ability has resolved this turn. If it's the second time, add . If it's the third time, Omnath deals 4 damage to each opponent and each planeswalker you don't control.

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.

Destroy target artifact or enchantment.

Shroud (This creature can't be the target of spells or abilities.)
Whenever you cast an enchantment spell, draw a card.

Return the top creature card of your graveyard to the battlefield. That creature gains haste until end of turn. Exile it at the beginning of the next end step.

: Target creature you control gains protection from the color of your choice until end of turn.

, Pay 1 life, Sacrifice this land: Search your library for a Plains or Island card, put it onto the battlefield, then shuffle.

Search your library for a card, put that card into your graveyard, then shuffle.

As long as this creature is untapped, all damage that would be dealt to you by unblocked creatures is dealt to this creature instead.