Onslaught

Onslaught has a warp charge value of 6. If manifested, select a friendly TYRANIDS unit
within 18" of the psyker. That unit can shoot this
turn (even if it Advanced) without suffering any penalties to its hit rolls for moving and shooting
Heavy weapons, or Advancing and shooting
Assault weapons. In addition, that unit can charge
this turn even if it Advanced (though not if it Fell
Back).