Fetid Hollows
Enchantment Land (Rare)

(Fetid Hollows isn't a spell.)

Fetid Hollows enters the battlefield tapped.

All creatures have Swampwalk.

Tap, Pay 1 life, Sacrifice Fetid Hollows: Search your library for a Swamp or Forest card and put it onto the battlefield, then shuffle your library.

Allan Chippy