Choose

a

land

type.

Exile

all

lands

you

control

of

that

type.

Drop

those

cards,

one

at

a

time,

onto

the

playing

area

from

a

height

of

at

least

one

foot.

Destroy

each

permanent

completely

covered

by

those

cards.

Then

return

the

cards

you

dropped

to

the

battlefield

tapped.