Effect: The gaze reflection spell creates a mirror-like area of air before the illusionist.
Any gaze attack, such as that of a basilisk or a medusa,
will be reflected back upon the gazer if it looks upon the spell caster.

DMG: The creature that has its gaze reflected by this spell is entitled to a saving throw.

Gaze Reflection: The creature which has
its gaze reflected does, of course, get a
save against the effects of its
own gaze.
(Imagine #29)