Artifact
:
Target
creature
gains
islandwalk
until
end
of
turn.
When
this
artifact
leaves
the
battlefield
this
turn,
destroy
that
creature.
A
creature
destroyed
this
way
can't
be
regenerated.
(A
creature
with
islandwalk
can't
be
blocked
as
long
as
defending
player
controls
an
Island.)