Players can’t play lands.
Lands can’t enter the battlefield.
At the beginning of each upkeep, any player may sacrifice two lands of their choice or have Worms of the Earth deal 5 damage to that player. If a player does either, destroy Worms of the Earth.
The ground collapsed, leaving nothing but the great Worms' mucous residues.
If a permanent spell tries to enter as a land during its resolution (for instance, a Clone entering the battlefield as a copy of a Dryad Arbor or an animated Mutavault), it is put into its owner's graveyard instead of entering. It never enters, so abilities that would have triggered on it entering won't trigger.
01-05-2006
wotc
In Two-Headed Giant, triggers only once per upkeep, not once for each player.
04-10-2004
wotc
If you cast a spell or activate an ability that lets you put a land onto the battlefield, the effect fails. You'll still do everything else the spell or ability tells you to do, such as shuffle the library.
04-10-2004
wotc
Land can't enter, so an effect that "puts a land onto the battlefield" won't do anything, and the land will stay where it is.
Random a card of Magic: The Gathering (MTG), but you can also roll the D20 dice, random a Planeswalker, have fun with the random rules and more.