Sorcery
Demonstrate
(When
you
cast
this
spell,
you
may
copy
it.
If
you
do,
choose
an
opponent
to
also
copy
it.)
Choose
two
basic
land
types.
Create
the
appropriate
Shockland
token.
(For
example,
if
you
choose
Island
and
Swamp,
you'd
get
a
Watery
Grave
token.)