Coronus Grav-carrier

In your Shooting phase, after this model has shot, select one enemy unit hit by one or more of those attacks. Until the end of the phase, each time a friendly model that disembarked from this TRANSPORT this turn makes an attack that targets that enemy unit, you can re-roll the Wound roll.

While this model has 1-5 wounds remaining, each time this model makes an attack, subtract 1 from the Hit roll.

5+

While an ADEPTUS CUSTODES unit is within 6" of this unit, models in that unit have the Feel No Pain 5+ ability against Psychic Attacks and mortal wounds.

While an ANATHEMA PSYKANA unit is within 6" of this unit, each time a model in that ANATHEMA PSYKANA unit makes an attack, add 1 to the Hit roll.