Weaver of Fates

The psyker traces the skeins of the future to see the
fates of battle. Forewarned of imminent danger,
warriors dodge bullets and sword blows with seemingly supernatural reflexes.
{6}Select a THOUSAND SONS unit within 18"
of the psyker. Until the start of your next Psychic phase, the invulnerable save of that unit is
improved by 1 (to a maximum of 3+). Models
that do not have an invulnerable save instead gain
a 5+ invulnerable save.