As nouns the difference between hallion and hellion
is that hallion is a rascal while hellion is an unruly, rowdy or mischievous person.
As an adjective hellion is
cursed, ill-fated.
hellion
English
Noun
(
en noun)
an unruly, rowdy or mischievous person
an evil person
the larva of the
Adjective
(-)
cursed, ill-fated