Enchantment
At
the
beginning
of
each
upkeep,
count
the
number
of
permanents.
If
the
number
is
odd,
until
end
of
turn,
red
creatures
get
+1/+1
and
whenever
a
player
taps
a
Mountain
for
mana,
that
player
adds
an
additional
.
If
the
number
is
even,
until
end
of
turn,
red
creatures
get
-1/-1
and
if
a
player
taps
a
Mountain
for
mana,
that
Mountain
produces
colorless
mana
instead
of
any
other
type.