Spell Portal

Spell Portal when summoned must be set up
wholly within 18'' of the caster.
Once per turn, if a Wizard successfully casts
a spell within 1'' of this endless spell,
the range, visibility and effect of the spell can be
measured from this endless spell instead of
the caster.
Once per turn A predatory spell within 6''
of this spell can be re-set up within 6''.