Planechase Anthology Planes

Murasa

Whenever a nontoken creature enters the battlefield, its controller may search his or her library for a basic land card, put it onto the battlefield tapped, then shuffle his or her library.
Whenever you roll {Chaos}, target land becomes a 4/4 creature that's still a land.

Whenever a nontoken creature enters, its controller may search their library for a basic land card, put it onto the battlefield tapped, then shuffle.
Whenever chaos ensues, target land becomes a 4/4 creature that's still a land.

Planechase Planes

Whenever a nontoken creature enters the battlefield, its controller may search his or her library for a basic land card, put it onto the battlefield tapped, then shuffle his or her library.
Whenever you roll chaos, target land becomes a 4/4 creature that's still a land.