Landfall — Whenever a land you control enters, target player mills three cards. (They put the top three cards of their library into their graveyard.)

Landfall — Whenever a land you control enters, each opponent mills three cards. (To mill a card, a player puts the top card of their library into their graveyard.)

Flying You may have this creature enter as a copy of any creature on the battlefield with mana value less than or equal to the amount of mana spent to cast this creature, except it's a Bird in addition to its other types and it has flying.

Draw a card. If a graveyard has twenty or more cards in it, draw three cards instead.

If an opponent searched their library this turn, you may pay {0} rather than pay this spell's mana cost. Target opponent mills thirteen cards.

Target player mills ten cards.

Each opponent exiles cards from the top of their library until that player has exiled cards with total mana value 20 or greater.

Each opponent mills fourteen cards. Cycling {1}{U} ({1}{U}, Discard this card: Draw a card.) When you cycle this card, each opponent mills four cards.

({T}: Add {U}.)

Hideaway 4 (When this land enters, look at the top four cards of your library, exile one face down, then put the rest on the bottom in a random order.) This land enters tapped. {T}: Add {U}. {U}, {T}: You may play the exiled card without paying its mana cost if a library has twenty or fewer cards in it.

({T}: Add {B}.)

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

{T}, Sacrifice this land: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

{T}, Sacrifice this land: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle. Then if you control four or more lands, untap that land.

{T}: Add {C}. {2}, {T}, Sacrifice this land: Destroy target nonbasic land an opponent controls. Each player searches their library for a basic land card, puts it onto the battlefield, then shuffles.

{T}, Pay 1 life, Sacrifice this land: Search your library for an Island or Swamp card, put it onto the battlefield, then shuffle.