Glamour of Tzeentch

The psyker twists and obscures the perceptions of his
foes to the point that his allies become all but invisible.
Glamour of Tzeentch has a warp charge value of
7. If manifested, select a friendly THOUSAND
SONS unit within 12" of the psyker. Until the
start of your next Psychic phase, your opponent
must subtract 1 from any hit rolls they make for
models that target that unit.