Enchantment
Whenever
a
player
chooses
one
or
more
targets,
each
player
reveals
the
top
card
of
their
library.
The
player
who
reveals
the
card
with
the
greatest
mana
value
may
change
the
target
or
targets.
If
two
or
more
cards
are
tied
for
greatest,
the
target
or
targets
remain
unchanged.
Changing
targets
this
way
doesn't
trigger
abilities
of
permanents
named
Psychic
Battle.